| Друго (научно-популярни и др. под.) |
|
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Nedyu Popivanov, SIMPRO – Business Processes and Simulation Competence Centre, Advances in Bulgarian science, 3 (2009), 24-27
|
2009
|
| Научен проект |
|
1
|
Недю Попиванов, Изследване и 3D визуализация на решения с особености на гранични задачи за уравнения на математическата физика, Член, СУ, Номер на договора:158/08.05.13
|
2013
|
|
2
|
Недю Попиванов, Визуализация и поведение на сингулярни решения на гранични задачи за уравнения на математическата физика, Член, Софийски Университет, Номер на договора:179 от 9.05.2012 г.
|
2012
|
|
3
|
Недю Попиванов, Изследване и визуализация на решения с особености на гранични задачи за уравнения на математическата физика, Член, Софийски Университет, Номер на договора:153 от 19.04.2011 г.
|
2011
|
|
4
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Недю Попиванов, Поведение и визуализация на сингулярни решения на гранични задачи за уравнения на математическата физика, Член, Софийски Университет, Номер на договора:184/26.04.2010
|
2010
|
|
5
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Недю Попиванов, Център за върхови научни постижения „Суперкомпютърни приложения”
(SuperCA++), Ръководител, ФНИ, Номер на договора:DCVP 02/1
|
2010
|
|
6
|
Недю Попиванов, Сингулярни решения на гранични задачи за уравнения на математическата физика, Член, Софийски Университет, Номер на договора:072/2009
|
2009
|
|
7
|
Nedyu Popivanov, Iinternational Project RIFI under 7th EU Frame Program, Ръководител, EU Commission, Номер на договора:Grant Agreement Number 228293
|
2008
|
|
8
|
Недю Попиванов, Сингулярни решения на гранични задачи за уравнения на математическата физика, Член, Софийски Университет, Номер на договора:223/2008
|
2008
|
|
9
|
Недю Попиванов, Център за върхови научни постижения „Суперкомпютърни приложения”
(SuperCA), Ръководител, ФНИ, Номер на договора:DO 02 115/08
|
2008
|
|
10
|
Недю Попиванов, Център за компетентост по симулация и бизнес процеси
, Ръководител, ФНИ, Номер на договора:DO-02-75/2008
|
2008
|
|
11
|
Недю Попиванов, Решения с особености на гранични задачи за уравнения на математическата физика, Ръководител, Софийски Университет, Номер на договора:100/2007
|
2007
|
| Научно ръководство |
|
1
|
Недю Попиванов, Тъждества на Похожаев и приложение към нелинейни ЧДУ от смесен тип, ФМИ, СУ дисертация д-р:PhD, Яни Бошев
|
2021
|
|
2
|
Jenaliyev Muvasharkhan , Nedyu Popivanov, Boundary Value Problems for parabolic equation in noncilindrical domain, AL-FARABI KAZAKH NATIONAL UNIVERSITY, THE REPUBLIC OF KAZAKHSTAN дисертация д-р:PhD Yergaliyev Madi, Almati, Kazakhstan
|
2018
|
|
3
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Недю Попиванов, Приложение на законите за запазване към гранични задачи за нелинейни ЧДУ, Софийски Университет дисертация д-р:PhD, Венета Колева
|
2018
|
|
4
|
Недю Попиванов, Петьо Келеведжиев, Техниката на бариерните ивици за изследване на разрешимостта на гранични задачи за ОДУ, Sofia University дисертация д-р:PhD, Laura Bekesheva, Kazakhstan
|
2018
|
|
5
|
Tynysbek Kalmenov, Nedyu Popivanov, Construction and investigation of boundary properties of the Newtonian potential of elliptic-parabolic type, AL-FARABI KAZAKH NATIONAL UNIVERSITY, Kazakhstan дисертация д-р:PhD, Gauhar AREPOVA, Almati, Kazkhstan
|
2017
|
|
6
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Недю Попиванов, Задача на Протър за уравнения от променлив тип, ФМИ при СУ дисертация д-р:PhD Aлексей Николов
|
2014
|
|
7
|
Недю Попиванов и Маргарита Бонева, Осцилационни свойства на функционално-диференциални от неутрален тип уравнения с импулсно въздействие и асимптотично поведение на неосцилиращите им решения, Sofia Technical University – Branch Sliven дисертация д-р:PhD, Ваньо Иванов
|
2012
|
|
8
|
Недю Попиванов, Особености на решенията на хиперболични уравнения в области с характеристична граница, Sofia University дисертация д-р:PhD Цветан Христов
|
2006
|
|
9
|
Недю Попиванов, Точно поведение на сингулярните решения за задачите на Протер, Софийски Университет дисертация д-р:PhD, Тодор Попов
|
2004
|
| Редактор на издание реферирано |
|
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Недю Попиванов, AIP Conference Proceedings , Редактор на издание реферирано
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2013
|
| Статия в научно списание |
|
1
|
Svetozar Margenov, Nedyu Popivanov, Tsvetan Hristov, Veneta Koleva, Computing the COVID-19 Basic and Effective Reproduction Numbers Using Actual Data: SEIRS Model with Vaccination and Hospitalization, Mathematics, vol:12(24), issue:Article Number 3998, 2024, pages:1-23, ISSN (online):EISSN 2227-7390, doi:https://doi.org/10.3390/math12243998, Ref, Web of Science, IF (2.3 - 2023), Web of Science Quartile: Q1 (Mathematics), SCOPUS, SJR (0.475 - 2023), SCOPUS Quartile: Q2 (Mathematics), PhD
|
2024
|
|
2
|
S. Margenov, N. Popivanov, I. Ugrinova, Ts. Hristov, Differential and Time-Discrete SEIRS Models with Vaccination: Local Stability, Validation and Sensitivity Analysis Using Bulgarian COVID-19 Data, Mathematics, vol:11, issue:10 (Article ID: 2238), 2023, pages:1-26, ISSN (online):2227-7390, doi:https://doi.org/10.3390/math11102238, Ref, Web of Science, IF (2.3 - 2023), Web of Science Quartile: Q1 (Mathematics), SCOPUS, SJR (0.48 - 2023), SCOPUS Quartile: Q2 (Mathematics)
|
2023
|
|
3
|
Nedyu Popivanov, Pohozhaev type identity and application to one nonlinear problem of mixed type, AIP Conference Proceedings, 2023, Ref
|
2023
|
|
4
|
Nedyu Popivanov, Todor Popov, Ingo Witt, Solutions with exponential singularity for (3 + 1)-D Protter problems, Journal of Hyperbolic Differential Equations, vol:20, issue:2, 2023, pages:475-498, ISSN (print):0219-8916, ISSN (online):1793-6993, doi:10.1142/S0219891623500145, Ref, IR , IF ( - 2022), Web of Science Quartile: Q4 (Mathematics), SCOPUS, SJR (0.615 - 2023), SCOPUS Quartile: Q2 (Mathematics (miscellaneous); Analysis), International
|
2023
|
|
5
|
Svetozar Margenov, Nedyu Popivanov, Iva Ugrinova, Tsvetan Hristov, Mathematical Modeling and Short-Term Forecasting of the COVID-19 Epidemic in Bulgaria: SEIRS Model with Vaccination, Mathematics, vol:10, issue:15 (Article ID: 2570), 2022, pages:1-28, ISSN (online):2227-7390, doi:https://doi.org/10.3390/math10152570, Ref, Web of Science, IF (2.4 - 2022), Web of Science Quartile: Q1 (Mathematics: 23/329), SCOPUS, SJR (0.446 - 2022), SCOPUS Quartile: Q2 (Mathematics)
|
2022
|
|
6
|
Svetozar Margenov, Nedyu Popivanov, Iva Ugrinova, Stanislav Harizanov, Tsvetan Hristov, Parameters identification and forecasting of COVID-19 transmission dynamics in Bulgaria with mass vaccination strategy, AIP Conference Proceedings , vol:2505, issue:Article ID: 080010, 2022, pages:1-16, ISSN (online):0094243X, 15517616, ISBN:978-0-7354-4396-9, doi:https://doi.org/10.1063/5.0106519, Ref, IR , SCOPUS, SJR (0.189 - 2021)
|
2022
|
|
7
|
Nedyu Popivanov, Tsvetan Hristov, Rudolf Scherer, Singular solutions of 3-D Protter-Morawetz problem for weakly hyperbolic equations of Tricomi type, AIP Conference Proceedings , vol:2505, issue:Article ID: 030005, 2022, pages:1-8, ISSN (online):0094243X, 15517616, ISBN:978-0-7354-4396-9, doi:https://doi.org/10.1063/5.0106518, Ref, IR , SCOPUS, SJR (0.189 - 2021), International
|
2022
|
|
8
|
M. El Hatri, R. Ghenji, N. Popivanov, Axisymmetric Problem of Non-stationary Navier-Stokes Equations Coupled with the Heat Equation, APPLICATIONS OF MATHEMATICS IN ENGINEERING AND ECONOMICS (AMEE20), vol:2333, 2021, doi:10.1063/5.0041937, Ref, Web of Science, IF ( - 2021), Web of Science Quartile: Q4 (2021), SCOPUS, SJR ( - 2021), SCOPUS Quartile: Q4 (2021)
|
2021
|
|
9
|
S. Margenov, N. Popivanov, I. Ugrinova, S. Harizanov, Ts. Hristov, Mathematical and computer modeling of COVID-19 transmission dynamics in Bulgaria by time-depended inverse SEIR model, AIP Conference Proceedings, vol:2333, issue:Art. number 090024, 2021, pages:1-15, ISBN:978-0-7354-4077-7, doi: https://doi.org/10.1063/5.0041868, Ref, IR , SCOPUS, SJR (0.19 - 2019)
|
2021
|
|
10
|
S. Harizanov, S. Margenov, N. Popivanov, Spectral Fractional Laplacian with Inhomogeneous Dirichlet Data: Questions, Problems, Solutions, Arxiv, 2021, doi:arXiv:2010.01383, Ref, Web of Science Quartile: Q4 (2021), SCOPUS Quartile: Q4 (2021)
|
2021
|
|
11
|
Moiseev E., Moiseev T., N. Popivanov, Kholomeeva A., Разрешимость Нелокальных Краевых Задач для Уравнения Смешанного Типа с Различными Краевыми Условиями, Дифференциальные уравнения, vol:54, 10, 2018, 1403-1407. ISI IF:0.674, issue:10, 2018, pages:1403-1407, doi:https://link.springer.com/article/10.1134/S0012266118100129, Ref, IF, IF (0.674 - 2017), International
|
2018
|
|
12
|
N. Popivanov, T. Hristov, A. Nikolov, M. Schneider, Singular solutions to a (3+1)-D Protter-Morawetz problem for Keldysh-type equations, Advances in Mathematical Physics, vol:2017, issue:Article ID 1571959, 2017, pages:1-16, ISSN (print):1687-9120, ISSN (online):1687-9139, doi:https://doi.org/10.1155/2017/1571959, Ref, Web of Science, IF (0.71 - 2017), Web of Science Quartile: Q4 (48/55 Physics Mathematical, 2017 JCR-WoS), SCOPUS, SJR (0.218 - 2017), SCOPUS Quartile: Q3 (2017), International
|
2017
|
|
13
|
T. Hristov, A. Nikolov, N. Popivanov, M. Schneider, Generalized Solutions of Protter Problem for (3+1)-D Keldysh Type Equations, AIP Conf. Proc. , vol:1789, issue:art. no. 040007, 2016, pages:1-13, ISSN (online):0094243X, ISBN:978-0-7354-1453-2, doi:https://doi.org/10.1063/1.4968460, Ref, IR , SCOPUS, SJR (0.165 - 2016), SCOPUS Quartile: Q3 (2016), International
|
2016
|
|
14
|
Allen M. Tesdall, Richard Sanders, Nedyu Popivanov, Further results on Guderley Mach reflection and the triple point paradox, Journal of Scientific Computing, vol:September 2015, Volume 64, issue:Issue 3, 2015, pages:721-744, doi:doi:10.1007/s10915-015-0028-1, Ref, IF, IF (1.946 - 2015), SCOPUS Quartile: Q1 (2015), International
|
2015
|
|
15
|
T. Hristov, N. Popivanov, M. Schneider, Protter problem for 3-D Keldysh type equations involving lower order terms, AIP Conf. Proc. , vol:1690, issue:art. no. 040020, 2015, pages:1-12, ISSN (online):0094243X, ISBN:978-0-7354-1337-5, doi: https://doi.org/10.1063/1.4936727, Ref, IR , SCOPUS, SJR (0.18 - 2015), SCOPUS Quartile: Q3 (2015), International
|
2015
|
|
16
|
Nedyu Popivanov, Todor Popov, Rudolf Scherer, Singular solutions of the (3+1)-D Protter problem for the wave equation, Yakutian Mathematical Journal, vol:vol. 22, 2015, pages:58-67, Ref, International
|
2015
|
|
17
|
Nedyu Popivanov, Todor Popov, Analysis of singularities of solutions to Protter problems for the wave equation, AIP Conference Proceedings, Proceedings of ICNPAA 2014 World Congress: 10th International Conference on Mathematical Problems in Engineering, Aerospace and Sciences, vol:1637, 2014, pages:824-833, ISBN:978-0-7354-1276-7, doi:https://doi.org/10.1063/1.4904655, Ref, IR , SCOPUS, SJR (0.171 - 2014)
|
2014
|
|
18
|
T. Hristov, N. Popivanov, M. Schneider, Generalized solutions to Protter problems for 3-D Keldysh type equations, AIP Conf. Proc., Proceedings of ICNPAA 2014 World Congress: 10th International Conference on Mathematical Problems in Engineering, Aerospace and Sciences, vol:1637, issue:1, 2014, pages:422-430, ISSN (online):0094243X, ISBN:978-0-7354-1276-7, doi:https://doi.org/10.1063/1.4904607, Ref, IR , SCOPUS, SJR (0.171 - 2014), SCOPUS Quartile: Q3 (2014), International
|
2014
|
|
19
|
Daniela Lupo, Kevin Payne, Nedyu Popivanov, On the degenerate hyperbolic Goursat problem for linear and nonlinear equations of Tricomi type, Nonlinear Analysis Series A: Theory, Methods & Applications, vol:108, October 2014, 2014, pages:29-56, doi:10.1016/j.na.2014.05.009, Ref, Web of Science, International
|
2014
|
|
20
|
Petio Kelevedjiev, Nedyu Popivanov, Second-Order Initial Value Problems With Singularities, Boundary Value Problems, vol:2014, 2014:161 (26 September 2014), 2014, Ref, Web of Science
|
2014
|
|
21
|
Nedyu Popivanov, Todor Popov, Allen Tesdall, Semi-Fredholm Solvability In The Framework Of Singular Solutions For (3+1)-D Protter-Morawetz Problem , Abstract and Applied Analysis, vol:2014, 2014, pages:1-19, ISSN (print):1085-3375, ISSN (online):1687-0409, doi:http://dx.doi.org/10.1155/2014/260287, Ref, IR , SCOPUS, SJR (0.492 - 2014), International
|
2014
|
|
22
|
Nedyu Popivanov, Alexey Nikolov, Asymptotic expansion of singular solutions to Protter problem for (2+1)-D degenerate wave equation, AIP Conference Proceedings, vol:1570, 2013, pages:249-256, doi:doi: 10.1063/1.4854763 , Ref, Web of Science, PhD
|
2013
|
|
23
|
Nedyu Popivanov, Tsvetan Hristov, Manfred Schneider, On Uniqueness of Quasi-regular Solutions to Protter problem for Keldish type equations, AIP Conf. Proc. , vol:1570, 2013, pages:321-326, ISSN (online):0094243X, ISBN:978-07354-1198-2, doi:https://doi.org/10.1063/1.4854772 , Ref, IR , SCOPUS, SJR (0.164 - 2013), SCOPUS Quartile: Q3 (2013), International
|
2013
|
|
24
|
Nedyu Popivanov, Manfred Schneider, Tsvetan Hristov, Protter problems for 3-D mixed type equations, Doklady AMAN, vol:15, issue:2, 2013, pages:57-63, ISSN (print):1726-9946, Ref, International
|
2013
|
|
25
|
Nedyu Popivanov, Todor Popov, Allen Tesdall, Semi-Fredholm solvability and asymptotic expansions of singular solutions for Protter
problems, AIP Conference Proceedings, vol:1570, 2013, pages:335-342, ISBN:978-07354-1198-2, doi:https://doi.org/10.1063/1.4854774 , Ref, IR , SCOPUS, SJR (0.164 - 2013), International
|
2013
|
|
26
|
Nedyu Popivanov, Todor Popov, Rudolf Scherer, Singular Solutions with Exponential Growth to Protter’s Problems, Siberian Advances in Mathematics, 2013, Vol. 23, No. 3, pp. 219–226., vol:23, issue:No. 3, 2013, pages:219-226, ISSN (print):1055-1344, ISSN (online):1934-8126, doi:https://doi.org/10.3103/S1055134413030073, Ref, IR , SCOPUS, SJR (0.235 - 2013), International
|
2013
|
|
27
|
B. Keyfitz, Al. Tesdall, K. Payne, N. Popivanov, The Sonic Line as a free Boundary , Quarterly of Applied Mathematics , vol:71, 2013, pages:119-133, Ref, Web of Science
|
2013
|
|
28
|
Alexey Nikolov, Nedyu Popivanov, Exact behavior of singular solutions to Protter's problem for the (2+1)-D wave operator with lower order terms
, Electronic Journal of Differential Equations, vol:Vol. 2012, issue:No. 149, 2012, pages:1-20, Web of Science, PhD
|
2012
|
|
29
|
Panos Palamides, Petio Kelevedjiev, Nedyu Popivanov, On the solvability of a Neumann boundary value problem for the differential equation f(t,x,x',x'')=0, Boundary Value Problems, vol:2012, issue:2012:77, 2012, doi:doi:10.1186/1687-2770-2012-77, Web of Science
|
2012
|
|
30
|
T. Hristov, N. Popivanov, M. Schneider, Quasi-regular solutions to a class of 3D degenerating hyperbolic equations, AIP Conf. Proc. , vol:1497, issue:1, 2012, pages:205-212, ISSN (online):0094243X, ISBN:978-0-7354-1111-1, doi:https://doi.org/10.1063/1.4766787, Ref, IR , SCOPUS, SJR (0.176 - 2012), SCOPUS Quartile: Q3 (2012), International
|
2012
|
|
31
|
Alexey Nikolov, Nedyu Popivanov, Singular solutions to Protter's problem for (3+1)-D degenerate wave equation, American Instutute of Physics Conference Procedings , vol:1497, 2012, pages:233-238, doi:10.1063/1.4766790, Ref, Web of Science, PhD
|
2012
|
|
32
|
Ts. Hristov, N. Popivanov, M. Schneider, On Uniqueness of Generalized and Quasi-regular Solutions for Equations of Mixed Type in R³
, Siberian Advances in Mathematics , vol: 21, issue:4, 2011, pages:262-273, Web of Science
|
2011
|
|
33
|
N. Popivanov, T. Popov, Behaviour of singular solutions to 3-D Protter problem for a degenerate hyperbolic equation, Comptes rendus de l’Acadèmie bulgare des Sciences, vol:63, issue:6, 2010, pages:829-834, ISSN (print):1310–1331, ISSN (online):2367–5535, Ref, IF, IF (0.219 - 2010), SCOPUS Quartile: Q3 (44/59 Multdisc.Sci., 2010 JCR-WoS)
|
2010
|
|
34
|
P. Kelevedjiev, D.O’Regan, R.P. Agarwal, N. Popivanov, Existence results for second order boundary value problems using barrier strip technique , Aequationes Math., vol:79, 2010, pages:281-291, Web of Science
|
2010
|
|
35
|
N. Popivanov, T. Popov, R. Scherer, Semi-Fredholm solvability or exponential growth for (3+1)-D Protter problems, Comptes rendus de l’Acadèmie bulgare des Sciences, vol:63, issue:7, 2010, pages:953-960, ISSN (print):1310–1331, ISSN (online):2367–5535, Ref, IF, IF (0.219 - 2010), SCOPUS Quartile: Q3 (44/59 Multdisc.Sci., 2010 JCR-WoS), International
|
2010
|
|
36
|
P. Kelevedjiev, P. Palamides, N. Popivanov, Another understanding of fourth-order four-point boundary-value problems, Electronic Journal of Differential Equations, vol:2008, issue:47, 2008, pages:1-15, Web of Science
|
2008
|
|
37
|
L. Dechevski, N. Popivanov, Morawetz-Protter 3D problem for quasilinear equations of elliptic-hyperbolic type. Critical and supercritical cases , Comptes rendus de l’Acade'mie bulgare des Sciences, vol:61, issue:12, 2008, pages:1501-1508, Web of Science, International
|
2008
|
|
38
|
M.K. Grammatikopoulos, P. Kelevedjiev, N. Popivanov, On the solvability for a singular boundary value problem for the equation f(t, x, x’, x’’) = 0, Journal of Mathematical Sciences, vol:149, issue:5 , 2008, pages:1504-1516, Web of Science
|
2008
|
|
39
|
L. Dechevski, N. Popivanov, Quasilinear equations of elliptic-hyperbolic type. Critical 2D case for nontrivial solutions, Comptes rendus de l’Acade'mie bulgare des Sciences, vol:61, issue:11, 2008, pages:1385-1392, Web of Science, International
|
2008
|
|
40
|
T. Hristov, N. Popivanov, Singular Solutions to Protter's Problem for a Class of 3-D Weakly Hyperbolic Equations, Comptes rendus de l’Acade'mie bulgare des Sciences, vol:60, issue:7, 2007, pages:719-724, ISSN (print):1310–1331, ISSN (online):2367–5535, Ref, IF, IF (0.106 - 2007), Web of Science Quartile: Q4 (46/50 Multidisciplinary sciences, 2007 JCR-WoS), Zentralblatt(Zbl 1174.35069)
|
2007
|
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41
|
P. Kelevedjiev, D. O'Regan, N. Popivanov, On a singular boundary value problem for the differential equation f(t,x,x',x'')=0 using barrier strips, Nonlinear Analysis, Theory, Methods, Appl., vol:65, 2006, pages:1348-1361, Web of Science
|
2006
|
|
42
|
D. Lupo, K. Payne, N. Popivanov, Nonexistence of nontrivial solutions for supercritical equations of mixed elliptic-hyperbolic type, Progress in Non-Linear Differential Equations and Their Applications Journal, Birkhäuser Verlag Basel, vol:66, 2005, pages:371-390, Ref, Web of Science, International
|
2005
|
|
43
|
N. Popivanov, T. Popov, Singular solutions of Protter's problem for the 3 + 1 – D wave equation, Integral Transforms and Special Functions, vol:15, issue:N1, 2004, pages:73-91, doi:https://doi.org/10.1080/1065246032000141924, Ref, Web of Science, PhD
|
2004
|
|
44
|
N. Popivanov, M. Schneider, On M. H. Protter problems for the wave equation in R3, Journal of Mathematical Analysis and Applications, vol:194, issue:1, 1995, pages:50-77, doi:https://doi.org/10.1006/jmaa.1995.1286, Ref, Web of Science, International
|
1995
|
|
45
|
Nedyu Popivanov, Manfred Schneider, A boundary value problem for the nonlinear Tricomi equation in three dimensions, Differential Equations, vol: vol. 27, issue:no. 4, 1991, pages:459-465, Ref, Web of Science, International
|
1991
|
| Статия в поредица |
|
1
|
Nedyu Popivanov, Todor Popov, Ingo Witt, Solutions with Power Type or Exponential Singularity for (3+1)-D Protter-Morawetz Problems, Trends in Mathematics, vol:MWCAPDE 2023, issue:1, editor/s:Ruzhansky, M., Torebek, B., Publisher:Birkhäuser, 2024, pages:177-186, ISSN (print):978-3-031-41664-4, ISSN (online):978-3-031-41665-1, doi:https://doi.org/10.1007/978-3-031-41665-1_20, Ref, IR , SCOPUS, SJR (0.217 - 2021), SCOPUS Quartile: Q4 (Mathematics (miscellaneous); Analysis), International
|
2024
|
|
2
|
Venkov, N. Popivanov, Pasheva, Preface: Applications of Mathematics in Engineering and Economics (AMEE'21), AIP Conference Proceedings, issue:2505, 2021, Ref, SCOPUS Quartile: Q4 (2021)
|
2021
|
|
3
|
S. Margenov, N. Popivanov, I. Ugrinova, S. Harizanov, Ts. Hristov, Mathematical and Computer Modeling of COVID-19 Transmission Dynamics in Bulgaria by Time-depended Inverse SEIR Model, arXiv COVID-19 e-print, issue:arXiv:2008.10360 , Publisher:Cornell University , 2020, pages:1-16
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2020
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| Статия в сборник (на конференция и др.) |
|
1
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Nedyu Popivanov, Evgeny Moiseev, Yani Boshev, Pohozhaev Type Identity for a Nonlinear Mixed Type Equation with Two Orthogonal Degeneration Lines, AIP Conference Proceedings, Publisher:AIP Publishing, 2020, Ref, Web of Science, International, PhD
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2020
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2
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Hatri Mohamed, Ghenji R., Nedyu Popivanov, A contribution in the mathematical study of axisymmetric flow of Navier-Stokes fluid coupled to the equation of heat, AIP Conference Proceedings, 2172, Publisher:American Institut of Physycs Publishing, 2019, pages:301801-301817, doi:https://doi.org/10.1063/1.5133507, Ref, Web of Science, International, PhD
|
2019
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3
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Nedyu Popivanov, Yani Boshev, Pohozaev identities and applications to mixed type
equations of mathematical physics, Том на 48-та Пролетна конференция на СМБ, 2019, pages:89-95, ISSN (online):1313-3330, Ref
|
2019
|
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4
|
Nedyu Popivanov, Evgeny Moiseev, Yani Boshev, Pohozaev identities and nonexistence of generalized solutions of some 2-D problems, AIP Conference Proceedings 2172, 030019 (2019), editor/s:Vesela Pasheva, Nedyu Popivanov and George Venkov, Publisher:AIP Publishing, 2019, ISBN:978-0-7354-1919-3, doi:https://doi.org/10.1063/1.5133508, Ref, Web of Science, IF (0.4 - 2019), SCOPUS, SJR (0.182 - 2019), International
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2019
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5
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N. Popivanov, Moiseev E., Boshev Y., On the degenerate hyperbolic Cauchy-Goursat problem for nonlinear Gellerstedt equations in the frame of generalized solvability, AIP Conference Proceedings, Volume 2048 Proceedings of the 44th International Conference on Applications of Mathematics in Engineering and Economics (AMEE'18) Sozopol, Bulgaria, 8–13 June, 2018, Publisher: American Institut of Physics Publishing, 2018, pages:1-13, doi:https://doi.org/10.1063/1.5082099, Ref, IR , SCOPUS, SJR (0.164 - 2017), International, PhD
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2018
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6
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Nedyu Popivanov, Evgeny Moiseev, Yani Boshev, On the degenerate hyperbolic Cauchy-Goursat problem for
nonlinear Gellerstedt equations in the frame of generalized
solvability, AIP Conference Proceedings 2048, 040027, editor/s:Vesela Pasheva, Nedyu Popivanov and George Venkov, Publisher:AIP Publishing, 2018, ISBN:978-0-7354-1774-8, doi:https://doi.org/10.1063/1.5082099, Ref, Web of Science, IF (0.4 - 2018), SCOPUS, SJR (0.182 - 2018), International
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2018
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7
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Kapustin N., Moiseev E., Polosin A., N. Popivanov, roblem with Oblique Derivative and Mixed Boundary Conditions on the Diameter for the Helmholtz Equation in a Semidisk, AIP Conference Proceedings, Volume 2048 Proceedings of the 44th International Conference on Applications of Mathematics in Engineering and Economics (AMEE'18) Sozopol, Bulgaria, 8–13 June 2018, 2048, 2018, 040021-0, Publisher:American Institut of Physics Publishing, 2018, pages:1-8, doi:https://doi.org/10.1063/1.5082093, Ref, IR , SCOPUS, SJR (0.164 - 2017), International
|
2018
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8
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L. Dechevsky L., K.R. Payne, N. Popivanov, Nonexistence of nontrivial generalized solutions for 2-D and 3-D BVPs with nonlinear mixed type equations
, AIP Conference Proceedings 1910: 43Th INTERNATIONAL CONFERENCE “APPLICATIONS OF MATHEMATICS IN ENGINEERING AND ECONOMICS” AMEE ’17, 1910, , Publisher:American Institut of Physics Publishing, 2017, pages:40015-0, doi:View online: https://doi.org/10.1063/1.5013982, Ref, IR , SCOPUS, SJR (0.16 - 2016), International
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2017
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9
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P. Kelevedjiev, N. Popivanov, L. Bekesheva, Existence of solutions for a class of third-order nonlinear boundary value problem, Proceedings of Conference on Applied Math., Sozopol, Bulgaria, 2015, editor/s:Vesela Pasheva , Nedyu Popivanov and George Venkov, Publisher:AIP Conference Proceedings 1690 , 2015, pages:40016-0, doi:doi: 10.1063/1.4936723, Ref, Web of Science, International, PhD
|
2015
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10
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Al. Nikolov, N. Popivanov, Riemann-Hadamard method for solving a (2+1)-D problem for degenerate hyperbolic equation, AIP Conference Proceedings, 1690, Proceedings of Conference on Applied Math., Sozopol, Bulgaria, 2015, editor/s:Vesela Pasheva , Nedyu Popivanov and George Venkov, Publisher:AIP Conference Proceedings, 2015, pages:40001-0, doi:doi: 10.1063/1.4936708, Ref, Web of Science, PhD
|
2015
|
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11
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P. Kelevedjiev, N. Popivanov, L. Bekesheva, On the solvability of a second-order singular initial value problem , AIP Conf. Proc. 1631, Proceedings of Conference on Applied Math., 2014, pages:245-251, doi:10.1063/1.4902483,, Ref, International, PhD
|
2014
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12
|
Al. Nikolov, N. Popivanov, Riemann-Hadamard function for Darboux-Goursat problem and its multidimensional application, AIP Conference Proceedings 1631; Proceedings of Conference on Applied Math., Sozopol, Bulgaria, Publisher:AIP Conference Proceedings , 2014, pages:175-180, doi:10.1063/1.4902474, Ref, PhD
|
2014
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13
|
Tsvetan Hristov, Nedyu Popivanov, Manfred Schneider, Quasi-regular solutions for 3D equations of Tricomi and Keldish types, Mathematics and Education in Mathematics, 2012 Proceedings of the Forty First Spring Conference of the Union of Bulgarian Mathematicians, Publisher:Съюз на математиците в България, 2012, pages:173-179, ISSN (print):1313-3330, Ref, др.(EuDML: http://eudml.org/doc/250920), International
|
2012
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14
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Tsvetan Hristov, Nedyu Popivanov, Manfred Schneider, Quasi-regular solutions to a class of 3D degenerating hyperbolic equations, AIP Conference Proceedings 1497, 2012, pages:205-212, ISSN (online):0094243X, ISBN:978-0-7354-1111-1, doi:https://doi.org/10.1063/1.4766787, Ref, IR , SCOPUS, SJR (0.17 - 2012), International
|
2012
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15
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Nedyu Popivanov, Alexey Nikolov, Singular solutions of Protter's problem for a class of 3-D hyperbolic equations, Mathematics and Education in Mathematics, 41, ISSN 1313–3330 , Publisher:Съюз на математиците в България, 2012, pages:190-196, Ref, PhD
|
2012
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16
|
T. Hristov, N. Popivanov, M. Schneider, Singular and quasi-regular solutions for weakly hyperbolic equations of Tricomi type, Scientific Session 120 years Fac. Math. and Inf., 24.09.2009, Publisher:St. Kliment Ohridsky University Press, 2011, pages:83-89, ISSN (print):1313-9045, Ref, International
|
2011
|
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17
|
Nedyu Popivanov, Tsvetan Hristov, The Darboux problem for a class of 3-D weakly hyperbolic equations , Mathematics and Education in Mathematics, 2011 Proceedings of the Fortieth Jubilee Spring Conference of the Union of Bulgarian Mathematicians, Publisher:Съюз на математиците в България, 2011, pages:193-199, ISSN (print):1313-3330, Ref, др.(EuDML: http://eudml.org/doc/250929)
|
2011
|
| Студия в научно списание |
|
1
|
N. Popivanov, T. Hristov, A. Nikolov, M. Schneider, On the existence and uniqueness of a generalized solution of the Protter problem for (3+1)
-D Keldysh-type equations, Boundary Value Problems, vol:2017, issue:2017:26 , 2017, pages:1-30, ISSN (online):1687-2770, doi:https://doi.org/10.1186/s13661-017-0757-1 , Ref, Web of Science, IF (1.156 - 2017), Web of Science Quartile: Q1 (51/310 Mathematics, 2017 JCR-WoS), SCOPUS, SJR (0.49 - 2017), SCOPUS Quartile: Q3 (2017), International
|
2017
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2
|
Lubomir Dechevski, Nedyu Popivanov, Todor Popov, Exact Asymptotic Expansion of Singular Solutions for the (2+1)-D Protter Problem, Abstract and Applied Analysis, vol:Volume 2012, issue:Article ID 278542, 33 pages, 2012, pages:1-33, ISSN (print):1085-3375, ISSN (online):1687-0409, doi:http://dx.doi.org/10.1155/2012/278542, Ref, IF, IF (1.102 - 2012), SCOPUS Quartile: Q1 (30/296 Math, 2012 JCR-WoS), International
|
2012
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3
|
N. Popivanov, T. Popov, R. Scherer, Protter-Morawetz multidimensional problems, Proceedings of Steklov Institute of Mathematics, vol:vol. 278, issue:Number 1 / October 2012 , 2012, pages:179-198, ISSN (print):0081-5438, ISSN (online):1531-8605, doi:https://doi.org/10.1134/S0081543812060181, Ref, IF, IF (0.277 - 2012), SCOPUS Quartile: Q4 (274/296 Math, 2012 JCR-WoS), International
|
2012
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4
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N. Popivanov, T. Popov, R. Scherer, Asymptotic expansions of singular solutions for (3 +1)-D Protter problems, Journal of Mathematical Analysis and Applications, vol:331, issue:2, 2007, pages:1093-1112, ISSN (print):0022-247X, ISSN (online):1096-0813, doi:http://dx.doi.org/10.1016/j.jmaa.2006.09.036, Ref, IF, IF (0.872 - 2007), SCOPUS Quartile: Q1 (32/207 Math, 2007 JCR-WoS), International
|
2007
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5
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M.K. Grammatikopoulos, N.I. Popivanov, T. P. Popov, New singular solutions of Protter's problem for the 3-D wave equation, Abstract and Applied Analysis, vol:2004, issue:4, 2004, pages:315-335, ISSN (print):1085-3375, ISSN (online):1687-0409, Ref, IF, IF (0.163 - 2007), SCOPUS Quartile: Q4 (200/207 Math, 2007 JCR-WoS), International
|
2004
|
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6
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N.I. Popivanov, T. P. Popov, Estimates for the singular solutions of the 3-D Protter's problem, Annuaire de l'Universite de Sofia, vol:96, 2003, pages:117-139, ISSN (print):0205-0808, Ref
|
2003
|
| Студия в поредица |
|
1
|
N. Popivanov, T. Popov, R. Scherer, Semi-Fredholm solvability for bounded solutions of Protter problems, Karlsruhe Institute of Technology, Preprintreihe der Fakultät für Mathematik, issue:11/10, Publisher:Karlsruhe Institute of Technology, 2010, pages:1-25, International
|
2010
|
|
2
|
N. Popivanov, T. Popov, R. Scherer, Semi-Fredholm solvability of 3+1-D Protter problems, Karlsruhe Institute of Technology. Preprintreihe der Fakultät für Mathematik, issue:24/07, Publisher:Karlsruhe Institute of Technology, 2007, pages:1-24, International
|
2007
|
|
3
|
L. Dechevsky, N. Popivanov, T. Popov, Asymptotic expansions of singular solutions of Protter problem, Applied Mathematics. Narvik University College, issue:1/2006, Publisher:Narvik University College. Norway, 2006, pages:1-21, ISSN (print):1504-4653, International
|
2006
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|
4
|
N. Popivanov, T. Popov, Exact Behavior of Singularities of Protter's Problem for the 3-D Wave Equation, Computing Supplementa, vol:Inclusion Methods for Nonlinear Problems, issue:Supplement 16, editor/s:Jürgen Herzberger, Publisher:Springer, 2003, pages:213-236, ISSN (print):0344-8029, Ref
|
2003
|
| Студия в сборник (на конференция и др.) |
|
1
|
N. Popivanov, T. Popov, R. Scherer, Bounded or singular solutions of Protter problems, Proceedings of the Scientific Session 120 Years Faculty of Mathematics and Informatics, ISSN 1313–9045., 2011, pages:95-101, International
|
2011
|
|
2
|
N. Popivanov, T. Popov, R. Scherer, Singular solutions with exponential growth for the (3+1)–D wave equation, Математика и математическо образование, Доклади на Четиридесетата юбилейна пролетна конференция на Съюза на математиците в България, 2011, pages:200-206, Ref, International
|
2011
|
|
3
|
N. Popivanov, T. Popov, R. Scherer, 50 years Protter problems. History and new results, Научно-приложна конференция “Математика, информатика и компютърни науки” посветена на 20 години математика и информатика във ВТУ “Св. Св. Кирил и Методий”, Publisher:ВТУ “Св. Св. Кирил и Методий”, 2006, pages:81-87, International
|
2006
|
| Участие в конференция |
|
1
|
Секционен доклад, Недю Попиванов, Pohozhaev identities as conservation laws for semi-linear elliptic-hyperbolic equations
|
2018
|
|
2
|
Секционен доклад, Nedyu Popivanov, Pohozhaev Identities as Conservation Laws for Semi-Linear Elliptic-Hyperbolic Equations
|
2018
|
|
3
|
Секционен доклад, Nedyu Popivanov, Pohodhaev identities as conservation laws for semi-linear elliptic-hyperbolic equations
|
2018
|
|
4
|
Секционен доклад, Nedyu Popivanov, Pohozhaev Identities for Semi-Linear Elliptic-Hyperbolic Equations and for Fractional Laplacian
|
2018
|
|
5
|
Секционен доклад, Недю Попиванов, Pohozhaev Identities for Semi-Linear Elliptic-Hyperbolic Equations and for Fractional Laplacian
|
2018
|
|
6
|
Секционен доклад, Nedyu Popivanov, Pohozhaev Identities for Quasilinear Equations of Mixed Elliptic-Hyperbolic Type
|
2017
|
|
7
|
Секционен доклад, Nedyu Popivanov, Pohodhaev Identities as Conservation Laws for Semi-Linear Elliptic-Hyperbolic Equations
|
2017
|
|
8
|
Секционен доклад, Nedyu Popivanov, Pohodhaev identities as conservation laws for semi-linear elliptic-hyperbolic equations
|
2017
|
|
9
|
Секционен доклад, Недю Попиванов, Pohozhaev Identities for Semilinear Mixed Type
Elliptic-Hyperbolic Equations
|
2017
|
|
10
|
Секционен доклад, Недю Попиванов, Pohozhaev identities as conservation laws for semi-linear elliptic-hyperbolic equations
|
2017
|
|
11
|
Секционен доклад, Nedyu Popivanov, On the solvability of fourth-order two-point boundary value problems
|
2016
|
|
12
|
Секционен доклад, Nedyu Popivanov, Pohodhaev Iidentities for 3D Quasilinear Equations of Mixed Elliptic-Hyperbolic Type
|
2016
|
|
13
|
Секционен доклад, Nedyu Popivanov, Pohozhaev Identities and Applications for Quasilinear Equations of Mixed Elliptic-Hyperbolic Type
|
2016
|
|
14
|
Секционен доклад, Nedyu Popivanov, Sobolev embeddings numbers and Quasilinear Equations of Mixed Elliptic-Hyperbolic Type
|
2016
|
|
15
|
Секционен доклад, Nedyu Popivanov, Supercritical and Critical Cases for
2D and 3D BVP for Quasi-linear Equations
|
2015
|
|
16
|
Секционен доклад, Nedyu Popivanov, Visualization - the bridge between Applied Mathematics and Cоmputer Sciences
|
2015
|
|
17
|
Секционен доклад, Nedyu Popivanov, Pohodhaev Identities for 3D Quazilinear Equations of
Mixed Elliptic-Hyperbolic Type
|
2015
|
|
18
|
Секционен доклад, Nedyu Popivanov, Existence of solutions for a class of
third-order nonlinear boundary value problems
|
2015
|
|
19
|
Секционен доклад, Nedyu Popivanov, О существовании решений для одного класса нелинейных краевых задач третьего порядка с помощью техники барьерных полосок
|
2015
|
|
20
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Секционен доклад, Nedyu Popivanov, Around the sonic barrier: history, simple examples and results
|
2015
|
|
21
|
Секционен доклад, Nedyu Popivanov, Supercritical and Critical Cases for Quazilinear Equations of Mixed
Elliptic-Hyperbolic Type
|
2015
|
|
22
|
Секционен доклад, Nedyu Popivanov, Pohozhaev Identities for Quasi-Linear Equations of Mixed Elliptic-Hyperbolic Type
|
2015
|
|
23
|
Секционен доклад, Недю Попиванов, Задаче Проттера 60 лет. Семи-фредхолмовость ее.
|
2015
|
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24
|
Секционен доклад, Nedyu Popivanov, Pohozhaev Identities and Applications for Quasilinear Equations of Mixed
Elliptic-Hyperbolic Type
|
2015
|
|
25
|
Секционен доклад, Недю Попиванов, Supercritical and Critical Cases for Quazilinear Equations of Mixed
Elliptic-Hyperbolic Type
|
2014
|
|
26
|
Секционен доклад, Nedyu Popivanov, Supercritical and critical cases for 2d and 3d BVP for quasilinear equations of mixed elliptic-hyperbolic type
|
2014
|
|
27
|
Секционен доклад, Nedyu Popivanov, Supercritical and Critical Cases for 2D and 3D BVP for Quazilinear Mixed Elliptic-Hyperbolic Type
|
2014
|
|
28
|
Секционен доклад, Недю Попиванов, Supercritical and Critical Cases for Quazilinear Equations of Mixed Elliptic-Hyperbolic Type
|
2014
|
|
29
|
Секционен доклад, Nedyu Popivanov, Multidimensional Protter-Morawetz Problem
|
2014
|
|
30
|
Секционен доклад, Недю Попиванов, Supercritical and Critical Cases for 2D and 3D BVP for Quazilinear Equations of Mixed Elliptic-Hyperbolic Type
|
2014
|
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31
|
Секционен доклад, Nedyu Popivanov, Supercritical and Critical Cases for 2D and 3D BVP for
Quasilinear Mixed Elliptic-Hyperbolic Type Equations
|
2014
|
|
32
|
Секционен доклад, Nedyu Popivanov, On the solvability of a second-order singular initial value problem
|
2014
|
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33
|
Секционен доклад, Nedyu Popivanov, Supercritical and critical cases for 2D and 3D BVP for quasilinear equations of mixed elliptic-hyperbolic type
Nedyu Popivanov
|
2014
|
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34
|
Секционен доклад, Nedyu Popivanov, Stefan Radev, Тheoretical and Numerical Results in Fluid Dynamics
|
2013
|
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35
|
Секционен доклад, Aleksey Nikolov, Nedyu Popivanov, Asymptotic expansion of singular solutions to Protter's problem for(2+1)-D degenerate wave equation
|
2013
|
|
36
|
Секционен доклад, Nedyu Popivanov, Supercritical and Critical Cases for 2D and 3D BVP for Quazilinear Equations of Mixed Elliptic-Hyperbolic Type
|
2013
|
|
37
|
Секционен доклад, Aleksey Nikolov, Nedyu Popivanov, Asymptotic Expansion of Singular Solutions of Protter’s Problem for 3+1-D degenerate wave equation
|
2013
|
|
38
|
Секционен доклад, Tsvetan Hristov, Nedyu Popivanov, Singular Solutions to Protter Problem for a Class of 3-D Weakly Hyperbolic Equations
|
2013
|
|
39
|
Секционен доклад, Hristov T. , Popivanov N. , Schneider M., Protter problems for 3D Keldish type equations involving lower order terms
|
2013
|
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40
|
Секционен доклад, Nedyu Popivanov, Supercritical and Critical Cases for 2D and 3D BVP for Quazilinear Equations of Mixed Elliptic-Hyperbolic Type
|
2013
|
|
41
|
Секционен доклад, Nedyu Popivanov, Supercritical and Critical Cases for Quazilinear Mixed Elliptic-Hyperbolic Types
|
2013
|
|
42
|
Секционен доклад, Alexey Nikolov, Nedyu Popivanov, Exact Asymptotic Expansion of Singular Solutions for the Degenerated Protter Problem
|
2013
|
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43
|
Секционен доклад, Alexey Nikolov, Nedyu Popivanov, Asymptotic behavior of singular solutions to Protter's problem for (3+1)-D degenerate wave equation
|
2012
|
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44
|
Секционен доклад, Alexey Nikolov, Nedyu Popivanov, Singular solutions of Protter's problem for a class of 3-D hyperbolic equations
|
2012
|
|
45
|
Секционен доклад, Nedyu Popivanov, Supercomputer Applications in Computational Fluid Mechanics. New Bulgarian results
|
2012
|
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46
|
Секционен доклад, Nedyu Popivanov, Supercritical and Critical Cases for 2D and 3D BVP for
Quazilinear Equations of Mixed Elliptic-Hyperbolic Type
|
2012
|
|
47
|
Секционен доклад, Ts. Hristov, N. Popivanov, M. Schneider, Quasi-regular solutions for 3D Equations of Tricomi and Keldish Types
|
2012
|
|
48
|
Секционен доклад, Aleksey Nikolov, Nedyu Popivanov, Exact Behavior Of Singular Solutions to Protter’s Problem with Lower Order Terms
|
2012
|
|
49
|
Секционен доклад, Tsvetan Hristov, Nedyu Popivanov, Solutions with Singularity to a Class of 3D Degeneraiting Hyperbolic Equations
|
2012
|
|
50
|
Секционен доклад, Tsvetan Hristov, Nedyu Popivanov, M. Schneider, Singular Solutions for a Class of 3D Weakly Hyperbolic Equations
|
2012
|
|
51
|
Секционен доклад, N. Popivanov, Т. Popov, R. Scherer, M. Schneider, 50 years Protter-Morawetz multidimensional problems
|
2011
|
|
52
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Секционен доклад, Nedyu Popivanov, Around the sonic barrier
|
2011
|
|
53
|
Секционен доклад, Nedyu Popivanov, 2D and 3D BVP for Quazilinear equations of mixed elliptic-hyperbolic type. Supercritical and critical cases
|
2011
|
|
54
|
Секционен доклад, Nedyu Popivanov, Supercritical and Critical cases for 2D and 3D BVP for Quazilinear Equations of mixed elliptic-hyperbolic type
|
2011
|
|
55
|
Секционен доклад, Ts. Hristov, N. Popivanov, M. Schneider, Generalized and Quasi-regular Solutions for Equations of Mixed Type in R3
|
2011
|
|
56
|
Секционен доклад, Nedyu Popivanov, Supercritical and Critical cases for 2D and 3D BVP for Quazilinear Equations of mixed elliptic-hyperbolic type
|
2011
|
|
57
|
Секционен доклад, Ts. Hristov, N. Popivanov, M. Schneider, Singular and quasi-regular solutions for a class of 3-D degenerating hyperbolic equations
|
2010
|
|
58
|
Секционен доклад, Nedyu Popivanov, Morawetz-Protter Multidimensional Problems for quazilinear equations of mixed elliptic-hyperbolic type. Supercritical and critical cases
|
2010
|
|
59
|
Секционен доклад, Nedyu Popivanov, 50 years Protter-Morawetz multidimensional problems
|
2010
|
|
60
|
Секционен доклад, Nedyu Popivanov, Critical case for special BV problems,using Pohojaev Identities
|
2009
|
|
61
|
Секционен доклад, Nedyu Popivanov, Asymptotic expansions of singular solutions for (3+1)-D Protter problems. Semi-Fredholm solvability
|
2009
|
|
62
|
Секционен доклад, Nedyu Popivanov, Bulgarian approach in the virtual world
|
2009
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|
63
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Секционен доклад, Nedyu Popivanov, Cultural Heritage in 3D Virtual Reality
|
2009
|
| Участие в редколегия |
|
1
|
Недю Попиванов, "Bulletin of Moscow University. Series 15. Computational Mathematics and Cybernetics", Участие в редколегия
|
2018
|
|
2
|
Nedyu Popivanov, "THE BULLETIN OF IRKUTSK STATE UNIVERSIT", Series «MATHEMATICS», Участие в редколегия
|
2016
|
|
3
|
Недю Попиванов, Журнал «Вестник Актюбинского регионального государственного университета имени К.Жубанова», Участие в редколегия
|
2011
|
|