Глава от книга |
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S. P. Boumova, P. G. Boyvalenkov, M. M. Stoyanova, Orthogonal arrays, their distance distributions, minimum distance, and covering radius, submitted, Springer Lecture Notes in Mathematics series, Vietnam Institute for Advanced Study in Mathematics (VIASM), Ref, Рецензирано
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2021
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Дипломна работа |
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Мая Митева Стоянова, Геометрия на един кососиметричен оператор в тримерно Риманово многообразие, СУ "Св. Климент Охридски", ФМИ, Ръководител:проф. дмн Грозьо Станилов
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1992
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Дисертация д-р |
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Мая Митева Стоянова, Върху структурата на някои сферични кодове и дизайни, Институт по математика и и нформатика, Българска академия на науките, Ръководител: проф. дмн Петър Г. Бойваленков
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2009
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Друго (научно-популярни и др. под.) |
1
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Sergiy Borodachov, Peter Boyvalenkov, Peter Dragnev, Douglas Hardin, Edward Saff, Maya Stoyanova, Energy bounds for weighted spherical codes and designs via linear programming, https://arxiv.org/pdf/2403.07457
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2024
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2
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Мая Стоянова, Университетът на Бъдещето. Софийският университет на 135 години, Съставители: Дария Карапеткова и Амелия Личева, Мая Стоянова, стр. 102-105, Университетско издателство "Св. Кл. Охридски", София
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2023
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3
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Peter Boyvalenkov, Peter Dragnev, Douglas Hardin, Edward Saff, Maya Stoyanova, On polarization of spherical codes and designs, https://arxiv.org/abs/2207.08807
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2022
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4
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Peter Boyvalenkov, Peter Dragnev, Douglas Hardin, Edward Saff, Maya Stoyanova, Universal minima of discrete potentials for sharp spherical codes, https://arxiv.org/abs/2211.00092
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2022
|
5
|
Alexander Barg, Peter Boyvalenkov, Maya Stoyanova, Bounds for the sum of distances of spherical sets of small size, https://arxiv.org/abs/2105.03511
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2021
|
6
|
Peter Boyvalenkov, Maya Stoyanova, Linear programming bounds for covering radius of spherical designs, https://arxiv.org/abs/2007.05599
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2020
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7
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Peter Boyvalenkov, Peter Dragnev, Douglas Hardin, Edward Saff, Maya Stoyanova, Next levels universal bounds for spherical codes: the Levenshtein framework lifted, https://arxiv.org/abs/1906.03062
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2019
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8
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Peter Boyvalenkov, Peter Dragnev, Douglas Hardin, Edward Saff, Maya Stoyanova, Universal Bounds for Size and Energy of Codes of Given Minimum and Maximum Distances, https://arxiv.org/abs/1910.07274
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2019
|
9
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Peter Boyvalenkov, Peter Dragnev, Douglas Hardin, Edward Saff, Maya Stoyanova, Upper bounds for energies of spherical codes of given cardinality and separation, https://arxiv.org/abs/1909.00981
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2019
|
10
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Peter Boyvalenkov, Peter Dragnev, Douglas Hardin, Edward Saff, Maya Stoyanova, Energy Bounds for Codes in Polynomial Metric Spaces, https://arxiv.org/abs/1804.07462
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2018
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11
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P. G. Boyvalenkov, P. D. Dragnev, D. P. Hardin, E. B. Saff, M. M. Stoyanova, On spherical codes with inner products in a prescribed interval, https://arxiv.org/abs/1801.07334
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2018
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12
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Peter Boyvalenkov, Danyo Danev, Maya Stoyanova, Refinements of Levenshtein bounds in q-ary Hamming spaces, https://arxiv.org/abs/1801.01982
|
2018
|
13
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Peter G. Boyvalenkov, Peter D. Dragnev, Douglas P. Hardin, Edward B. Saff, Maya M. Stoyanova, Energy bounds for codes and designs in Hamming spaces, https://arxiv.org/abs/1510.03406
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2016
|
14
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Peter Boyvalenkov, Tanya Marinova, Maya Stoyanova, Nonexistence of a few binary orthogonal arrays, https://arxiv.org/abs/1604.06117
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2016
|
15
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P. G. Boyvalenkov, P. D. Dragnev, D. P. Hardin, E. B. Saff, M. M. Stoyanova, Universal lower bounds for potential energy of spherical codes, https://arxiv.org/abs/1503.07228
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2015
|
16
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P. G. Boyvalenkov, P. D. Dragnev, D. P. Hardin, E. B. Saff, M. M. Stoyanova, Universal upper and lower bounds on energy of spherical designs, https://arxiv.org/abs/1509.07837
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2015
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Научен проект |
1
|
Мая Стоянова, "Студентски практики - Фаза 2", академичен наставник, Член, ОП НОИР, Номер на договора:BG05M2OP001-2.013-0001
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2023
|
2
|
Мая Стоянова, „Софийският университет - Маркер за иновации и технологичен трансфер (SUMMIT)“, дейност 2, научна група „Числен анализ, теория на приближенията и техните приложения“ (NATATA), ръководител: проф. д-р Боян Попов, член на научната група, Член, Национален план за възстановяване и устойчивост, Програма за ускоряване на икономическото възстановяване и трансформация чрез наука и иновации, Номер на договора:BG-RRP-2.004-0008
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2023
|
3
|
Мая Стоянова, Алгебрични, геометрични и комбинаторни методи в теория на кодирането, Член, МОН - ФНИ, Номер на договора:KP-06-N72/6-05.12.2023
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2023
|
4
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Мая Стоянова, Национална програма "Повишаване на изследователския капацитет в областта на математическите науки (ПИКОМ)" , Член, МОН, Номер на договора:Д01-67/05.05.2022 г.
|
2022
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5
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Мая Стоянова, Minimum Energy and Extremal Problems in Coding Theory, Ръководител, MFO Research in Pairs program, Leibniz Association, Номер на договора: 1922p
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2019
|
6
|
Мая Стоянова, Алгебрични и геометрични методи за защита на данни, Член, МОН - ФНИ, Номер на договора:KP-06-N32/2-2019
|
2019
|
7
|
Мая Стоянова, Национална научна програма "Информационни и комуникационни технологии за единен цифров пазар в науката, образованието и сигурността (ИКТ в НОС)", осъществена с финансовата подкрепа на МОН, научен координатор на програмата: проф. д-р Красен Стефанов., Член,
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2019
|
8
|
Мая Стоянова, Докторантски Център „Свети Климент Охридски“ (ДокЦент), Член, съфинансиране от Европейския социален фонд на Европейския съюз, Номер на договора:BG05M2OP001-2.009.0013
|
2017
|
9
|
Мая Стоянова, Кодове и комбинаторни конфигурации, Член, МОН - ФНИ, Номер на договора: ДН 02/2, 13.12.2016 г.
|
2017
|
10
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Мая Стоянова, Проектиране и разработване на прототип на информационна система „Указател за цитируемост на публикации от български автори (обществени науки)“, Член, МОН - ФНИ, Номер на договора: ДН 15/1, 11.12.2017 г.
|
2017
|
11
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Мая Стоянова, Дискретни, алгебрични и комбинаторни структури, Ръководител, ФМИ, ФНИ на СУ, Номер на договора: 57/12.04.2016
|
2016
|
12
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Мая Стоянова, Дискретни, алгебрични и комбинаторни структури, Член, ФМИ, ФНИ на СУ, Номер на договора: 144/02.04.2015
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2015
|
13
|
Мая Стоянова, International research exchange agreement between Indiana University Purdue University Fort Wayne and Sofia University "St. Kliment Ohridski", Faculty of Mathematics and Informatics, Sofia, Bulgaria, Член, Двустранно сътрудничество, Номер на договора: 741/2014
|
2014
|
14
|
Мая Стоянова, Дискретни, алгебрични и комбинаторни структури, Ръководител, ФМИ, ФНИ на СУ, Номер на договора: 015/09.04.2014
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2014
|
15
|
Мая Стоянова, Дискретни, алгебрични и комбинаторни структури, Член, ФМИ, ФНИ на СУ, Номер на договора: 101/2013
|
2013
|
16
|
Мая Стоянова, Студентски практики, Член, , Номер на договора: BG051PO001-3.3.07-0002
|
2013
|
17
|
Мая Стоянова, Дискретни, алгебрични и комбинаторни структури, Член, ФМИ, ФНИ на СУ, Номер на договора: 027/2012
|
2012
|
18
|
Мая Стоянова, Разработване на програми за електронни форми на дистанционно обучение във Факултет по математика и информатика, Член, съфинансиране от Европейския социален фонд на Европейския съюз, Номер на договора: BG051PO001-4.3.04-0018
|
2012
|
19
|
Мая Стоянова, Дискретни, алгебрични и комбинаторни структури, Член, ФМИ, ФНИ на СУ, Номер на договора: 187/2011
|
2011
|
20
|
Мая Стоянова, Дискретни, алгебрични и комбинаторни структури, Член, ФМИ, ФНИ на СУ, Номер на договора: 226/2010
|
2010
|
21
|
Мая Стоянова, Алгебрични, топологични и комбинаторни структури, Член, ФМИ, ФНИ на СУ, Номер на договора: 75/2009
|
2009
|
22
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Мая Стоянова, Теория на кодирането и алгебрични повърхнини, Член, ФМИ, ФНИ на СУ, Номер на договора: 171/2008
|
2008
|
23
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Мая Стоянова, Теория на кодирането и алгебрични повърхнини, Член, ФМИ, ФНИ на СУ, Номер на договора: 78/2006
|
2006
|
24
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Мая Стоянова, Алгебрични и комбинаторни методи в теорията на кодирането и информатиката, Член, МОН - ФНИ, Номер на договора: ММ - 1405/2004
|
2004
|
Научно ръководство |
1
|
Силвия Бумова, Мая Стоянова, Алгебрични методи за изследване на някои комбинаторни конфигурации и техните приложения", СУ "Св. Кл. Охридски", ФМИ, дисертация д-р:Тедис Арбен Рамай (Tedis Arben Ramaj)
|
2021
|
2
|
Мая Стоянова, Алгоритми за характеризиране на ортогонални масиви, СУ "Св. Кл. Охридски", ФМИ, дисертация д-р:Таня Тодорова Маринова
|
2021
|
3
|
Мая Стоянова, Спектри на ортогонални масиви, СУ "Св. Климент Охридски", ФМИ, магистър, дипломна работа:Таня Тодорова Маринова
|
2013
|
Статия в научно списание |
1
|
L. Zaharieva, M. Stoyanova, V Dimova, T S Genova, L Antonov, A Markovski, I Iliev, C Andreeva, Absorbance measurement for interdisciplinary educational experiment on cytotoxicity, Physics Education, vol:59, issue:6, 2024, doi:10.1088/1361-6552/ad7a45, Ref, IF, IF (0.6 - 2024), Web of Science Quartile: Q2 (2024)
|
2024
|
2
|
Sergiy Borodachov, Peter Boyvalenkov, Peter Dragnev, Douglas Hardin, Edward Saff, Maya Stoyanova, Energy bounds for weighted spherical codes and designs via linear programming, submitted, https://arxiv.org/pdf/2403.07457, 2024, International
|
2024
|
3
|
D. Kocheva, G. Rainovski, J. Jolie, ..., M. Stoyanova, et al, Study the structure of the low-lying states of 206 Po, Physica Scripta, vol:99, issue:6, 2024, doi:10.1088/1402-4896/ad4521, International, PhD, MSc
|
2024
|
4
|
Alexander Barg, Peter Boyvalenkov, Maya Stoyanova, Bounds for the sum of distances of spherical sets of small size, Discrete Mathematics, vol:346, issue:5, Article number: 113346, 2023, ISSN (print):0012-365X, ISSN (online):1872-681X, doi:https://doi.org/10.1016/j.disc.2023.113346, Ref, Web of Science, IF (0.8 - 2022), Web of Science Quartile: Q3 (170/330 Math., JCR-2022), SCOPUS, SJR (0.794 - 2022), SCOPUS Quartile: Q1 (Discr.Math.Comb., 2022), MathSciNet, International
|
2023
|
5
|
P. G. Boyvalenkov, P. D. Dragnev, D. P. Hardin, E. B. Saff, M. M. Stoyanova, Bounds for spherical codes: The Levenshtein framework lifted, MATHEMATICS OF COMPUTATION, vol:90, issue:329, 2021, pages:1323-1356, ISSN (print):0025-5718, ISSN (online):1088-6842, doi:https://doi.org/10.1090/mcom/3621, Ref, Web of Science, IF (2.417 - 2020), Web of Science Quartile: Q1 (48/265 Math.App, JCR-2020), SCOPUS, SJR (1.575 - 2021), SCOPUS Quartile: Q1 (AlgNTh, AppMath, CompMath, 2021), Zentralblatt(Zbl 07328923), International
|
2021
|
6
|
Silvia Boumova, Tedis Ramaj, Maya Stoyanova, Computing distance distributions of ternary orthogonal arrays, Comptes rendus de l'Académie bulgare des Sciences, vol:74, issue:2, 2021, pages:177-189, ISSN (print):1310–1331 , ISSN (online):2367–5535, doi:10.7546/CRABS.2021.02.03, Ref, Web of Science, IF (0.326 - 2021), Web of Science Quartile: Q4 (71/73 Multidsc, JCR-2020), SCOPUS, SJR (0.194 - 2021), SCOPUS Quartile: Q3 (2021), MathSciNet, PhD
|
2021
|
7
|
Peter Boyvalenkov, Maya Stoyanova, Linear programming bounds for covering radius of spherical designs, Results in Mathematics, vol:76, issue:article number: 95, 2021, ISSN (print):1422-6383, ISSN (online):1420-9012, doi:https://doi.org/10.1007/s00025-021-01400-x, Ref, Web of Science, IF (1.199 - 2020), Web of Science Quartile: Q2 (83/325 Math, JCR-2020), SCOPUS, SJR (0.74 - 2021), SCOPUS Quartile: Q1 (Q1 Math, Q2 AppMath), MathSciNet(MR4245484)
|
2021
|
8
|
Silvia Boumova, Tedis Ramaj, Maya Stoyanova, On Covering Radius of Orthogonal Arrays, 2020 Algebraic and Combinatorial Coding Theory (ACCT), Date of Conference: 11-17 Oct. 2020, Conference Location: Albena, Bulgaria, Date Added to IEEE Xplore: 25 March 2021, 2021, pages:23-28, ISBN:978-1-6654-0287-3, doi:10.1109/ACCT51235.2020.9383398, Ref, IEEE Xplore(10.1109/ACCT51235.2020.9383398), International, PhD
|
2021
|
9
|
P. G. Boyvalenkov, P. D. Dragnev, D. P. Hardin, E. B. Saff, M. M. Stoyanova, Universal Bounds for Size and Energy of Codes of Given Minimum and Maximum Distances, IEEE Transactions on Information Theory, vol:67, issue:6, 2021, pages:3569-3584, ISSN (print):0018-9448, ISSN (online):1557-9654, doi:10.1109/TIT.2021.3056319, Ref, Web of Science, IF (2.501 - 2020), Web of Science Quartile: Q2 (Q2 134/273 IngEE, Q3 CSc,InfSys, JCR-2020), SCOPUS, SJR (1.218 - 2020), SCOPUS Quartile: Q1 (Q1 CScApp, 2020), MathSciNet(MR4232226), International
|
2021
|
10
|
Peter G. Boyvalenkov, Peter D. Dragnev, Douglas P. Hardin, Edward B. Saff, Maya M. Stoyanova, Upper bounds for energies of spherical codes of given cardinality and separation, Designs, Codes and Cryptography, vol:88, issue:9, 2020, pages:1811-1826, ISSN (print):0925-1022, ISSN (online):1573-7586, Ref, Web of Science, IF (1.492 - 2020), Web of Science Quartile: Q2 (Q2 116/265 MathApp, Q3 61/110 CST&M, JCR-2020), SCOPUS, SJR (0.898 - 2020), SCOPUS Quartile: Q1 (Q1 AppMath, Q1 CScApp), MathSciNet(MR4149372), International
|
2020
|
11
|
Peter Boyvalenkov, Peter Dragnev, Douglas Hardin, Edward Saff, Maya Stoyanova, Linear Programming Bounds for Cardinality and Energy of Codes of Given Min and Max Distances, ISIT 2019: The 2019 IEEE International Symposium on Information Theory, Maison de la Mutualité in Paris, France, July 7-12, 2019, 2019, pages:1747-1751, ISSN (print):2157-8095, ISSN (online):2157-8117, ISBN:978-1-5386-9290-5, doi:10.1109/ISIT.2019.8849388, Ref, IR , SCOPUS, SJR (0.91 - 2019), IEEE Xplore(10.1109/ISIT.2019.8849388), International
|
2019
|
12
|
S. Boumova, T. Marinova, T. Ramaj, M. Stoyanova, Nonexistence of (17, 108, 3) ternary orthogonal array, Annual of Sofia University ”St. Kliment Ohridski“, Faculty of Mathematics and Informatics, vol:106, 2019, pages:117-126, ISSN (print):1313-9215, ISSN (online):2603-5529, Ref, MathSciNet(MR4125835), PhD
|
2019
|
13
|
Peter G. Boyvalenkov, Peter D. Dragnev, Douglas P. Hardin, Edward B. Saff, Maya M. Stoyanova, On spherical codes with inner products in a prescribed interval, Designs, Codes and Cryptography, vol:87, issue:2-3, 2019, pages:299-315, ISSN (print): 0925-1022, ISSN (online): 1573-7586, doi: https://doi.org/10.1007/s10623-018-0524-z, Ref, Web of Science, IF (1.524 - 2019), Web of Science Quartile: Q2 (Q2 75/261 MathApp, Q2 51/108 CST&M, 2019 JCR-WoS), SCOPUS, SJR (1.174 - 2019), SCOPUS Quartile: Q1 (Q1 AppMath, Q1 CScApp), MathSciNet(MR3911205), International
|
2019
|
14
|
Peter Boyvalenkov, Danyo Danev, Maya Stoyanova, Refinements of Levenshtein bounds in q-
ary Hamming spaces, Problems of Information Transmission, vol:54, issue:4, 2018, pages:329-342, ISSN (print): 0032-9460, ISSN (online): 1608-3253, doi: https://doi.org/10.1134/S0032946018040026, Ref, Web of Science, IF (0.557 - 2018), Web of Science Quartile: Q4 (Q4 97/104 CST&M, Q4 227/254 MathApp, 2018 JCR-WoS), SCOPUS, SJR (0.282 - 2018), SCOPUS Quartile: Q3 (Q3 CNetwC, Q3 CScApp, Q3 InfSys), MathSciNet(MR3917587), International
|
2018
|
15
|
Tanya Marinova, Maya Stoyanova, Nonexistence of (9, 112, 4) and (10, 224, 5) binary orthogonal arrays, Electronic Notes in Discrete Mathematics, containing the Proceedings of ACCT XV, vol:57, 2017, pages:153-159, ISSN (print): 1571-0653, doi: http://dx.doi.org/10.1016/j.endm.2017.02.026, Ref, IR , SCOPUS, SJR (0.262 - 2017), SCOPUS Quartile: Q3 (Q3 DMath&Comb, Q4 AppMath), Zentralblatt(Zbl 06859388), PhD
|
2017
|
16
|
Peter Boyvalenkov, Tanya Marinova, Maya Stoyanova, Nonexistence of a few binary orthogonal arrays, Discrete Applied Mathematics, vol:217, issue:2, 2017, pages:144-150, ISSN (print): 0166-218X, doi: http://dx.doi.org/10.1016/j.dam.2016.07.023, Ref, Web of Science, IF (0.932 - 2017), Web of Science Quartile: Q3 (136/252 MathApp, 2017 JCR-WoS), SCOPUS, SJR (0.785 - 2017), SCOPUS Quartile: Q2 (Q2 DMath&Comb, Q2 AppMath), MathSciNet(MR3581340), PhD
|
2017
|
17
|
P. Boyvalenkov, P. Dragnev, D. Hardin, E. Saff, M. Stoyanova, Universal Lower Bounds on Energy and LP-Extremal Polynomials for (4,24)-Codes, Electronic Notes in Discrete Mathematics, containing the Proceedings of ACCT XV, vol:57, 2017, pages:91-96, ISSN (print): 1571-0653, doi: http://dx.doi.org/10.1016/j.endm.2017.02.016, Ref, IR , SCOPUS, SJR (0.262 - 2017), SCOPUS Quartile: Q3 (Q3 DMath&Comb, Q4 AppMath), Zentralblatt(Zbl 06859378), International
|
2017
|
18
|
Peter Boyvalenkov, Tanya Marinova, Maya Stoyanova, Mila Sukalinska, Distance distributions and energy of designs in Hamming spaces, Serdica Journal of Computing, vol:9, issue:2, 2015, pages:139-150, ISSN (print): 1314-7897, ISSN (online): 1312-6555, Ref, MathSciNet(MR3526249), PhD
|
2015
|
19
|
Peter Boyvalenkov, Hristina Kulina, Tanya Marinova, Maya Stoyanova, Nonexistence of binary orthogonal arrays via their distance distributions, Problems of Information Transmission, vol:vol. 51, issue:No 4, 2015, pages:326-334, ISSN (print): 0032-9460, ISSN (online): 1608-3253, doi: https://doi.org/10.1134/S003294601504002X, Ref, Web of Science, IF (0.632 - 2015), Web of Science Quartile: Q3 (Q3 177/254 MathApp, Q4 80/105 CST&M, 2015, JCR-WoS), SCOPUS, SJR (0.403 - 2015), SCOPUS Quartile: Q2 (Q2 CNetwC, Q2 InfSys, Q3 CscApp), MathSciNet(MR3449575), PhD
|
2015
|
20
|
P. G. Boyvalenkov, P. D. Dragnev, D. P. Hardin, E. B. Saff, M. M. Stoyanova, Universal upper and lower bounds on energy of spherical designs, Dolomites Research Notes on Approximation, Padova University Press, Special Issue for the “10 years of the Padua points”, vol:Volume 8, 2015, pages:51-65, ISSN (print): 20356803, doi:http://dx.doi.org/10.14658/pupj-drna-2015-Special_Issue-6, Ref, IR , SCOPUS, SJR (0.344 - 2015), SCOPUS Quartile: Q3 (Q3 Math, Q3 AppMath), MathSciNet(MR3437484), International
|
2015
|
21
|
Мая Стоянова, Тенденции в шрифтовия дизайн, в контекста на перцептивните нарушения на четенето., Newmedia21.eu, 2014, ISSN (online):1314-3794, doi:10.5281/zenodo.13939646, Ref
|
2014
|
22
|
Peter Boyvalenkov, Maya Stoyanova, New nonexistence results for spherical designs, Advances in Mathematics of Communications, vol:7, issue:3, 2013, pages:279-292, ISSN (print): 1930-5346, ISSN (online): 1930-5338, doi: http://dx.doi.org/10.3934/amc.2013.7.279, Ref, Web of Science, IF (0.651 - 2013), Web of Science Quartile: Q3 (Q3 60/102 CST&M, Q3 154/251 MathApp, 2013 JCR-WoS), SCOPUS, SJR (3.176 - 2013), SCOPUS Quartile: Q1 (Q1 Math), MathSciNet(MR3092309)
|
2013
|
23
|
Peter Boyvalenkov, Maya Stoyanova, Improved approaches for investigation of small spherical designs, Compt. rend. Acad. bulg. Sci., vol:65, issue:6, 2012, pages:743-750, ISSN (print): 1310–1331, ISSN (online): 2367–5535, Ref, Web of Science, IF (0.211 - 2012), Web of Science Quartile: Q4 (46/56 MultidSc, 2012 JCR-WoS), SCOPUS, SJR (0.207 - 2012), SCOPUS Quartile: Q2 (Q2 Multidisc), MathSciNet(MR3026742)
|
2012
|
24
|
Peter Boyvalenkov, Maya Stoyanova, A new asymptotic bound of the minimum possible odd cardinality of spherical (2k-1)-designs, Discrete Mathematics, vol:310, issue:15-16, 2010, pages:2170-2175, ISSN (print): 0012-365X, doi: https://doi.org/10.1016/j.disc.2010.04.007, Ref, Web of Science, IF (0.536 - 2010), Web of Science Quartile: Q3 (163/279 Math, 2010 JCR-WoS), SCOPUS, SJR (0.845 - 2010), SCOPUS Quartile: Q2 (Q2 DMath&Comb, Q2 ThCSc), MathSciNet(MR2651814)
|
2010
|
25
|
S. Boumova, P. Boyvalenkov, M. Stoyanova, A method for proving nonexistence of spherical designs of odd strength and odd cardinality, Problems of Information Transmission, vol:45, issue:2, 2009, pages:110-123, ISSN (print): 0032-9460, ISSN (online): 1608-3253, doi: https://doi.org/10.1134/S0032946009020033, Ref, Web of Science, IF (0.393 - 2009), Web of Science Quartile: Q4 (Q4 83/92 CST&M, Q4 183/204 MathApp, 2009 JCR-WoS), SCOPUS, SJR (0.347 - 2009), SCOPUS Quartile: Q2 (Q2 CNetwC, Q3 CScApp, Q3 InfSys), MathSciNet(MR2554706)
|
2009
|
26
|
Silvia Boumova, Peter Boyvalenkov, Hristina Kulina, Maya Stoyanova, Polynomial techniques for investigation of spherical designs, Designs, Codes and Cryptography, vol:51, issue:3, 2009, pages:275-288, ISSN (print): 0925-1022, ISSN (online): 1573-7586, doi: https://doi.org/10.1007/s10623-008-9260-0, Ref, Web of Science, IF (0.825 - 2009), Web of Science Quartile: Q2 (Q2 102/204 MathApp, Q3 60/92 CST&M, 2009 JCR-WoS), SCOPUS, SJR (0.774 - 2009), SCOPUS Quartile: Q2 (Q2 AppMath, Q2 CScApp), MathSciNet(MR2485497)
|
2009
|
27
|
Silvia Boumova, Peter Boyvalenkov, Hristina Kulina, Maya Stoyanova, New nonexistence results for spherical 5-designs, Scientific Research, a Journal of South-West University, Blagoevgrad, Bulgaria, 14 pages., vol:5, 2007, ISSN (online): 1312-7535, Ref, Zentralblatt(Zbl 1238.05043)
|
2007
|
28
|
Peter Boyvalenkov, Maya Stoyanova, Spherical 2-distance sets which are spherical 3-designs, Annuaire L’Univ Sofia, Fac. Math. and Inform., Sofia, vol:95, 2004, pages:53-58, ISSN (print): 1313-9215, ISSN (online): 2603-5529, Ref, MathSciNet(MR2131506)
|
2004
|
Статия в сборник (на конференция и др.) |
1
|
Мая Стоянова, Новите лица на дизайна в ерата на дигиталната трансформация (под печат), COMMUNICATIONS, MEDIA AND EDUCATION IN THE PARADIGM OF NEW TECHNOLOGIES AND ARTIFICIAL INTELLIGENCE, 2025, Ref
|
2025
|
2
|
Sergiy Borodachov, Peter Boyvalenkov, Peter Dragnev, Douglas Hardin, Edward Saff, Maya Stoyanova, Linear programming lower bounds for energy of weighted spherical codes, WCC 2024: The Thirteenth International Workshop on Coding and Cryptography, June 17-21, 2024, Perugia, Italy, 2024, pages:77-86, Ref, International
|
2024
|
3
|
Мануела Манлихерова, Веселина Вълканова, Милена Цветкова, Теодора Петрова, Мая Василева, Мая Стоянова, Медийно зелено съдържание за устойчиво развитие., Стратегическо създаване на комуникационни мениджъри, редактор/и:проф. Веселина Вълканова, доц. Мая Василева, издателство:Софийски университет "Св. Кл. Охридски", 2024, стр.:89-97, ISSN (print):978-619-7561-21-2, ISSN (online):978-619-7567-22-9, Ref, Web of Science
|
2024
|
4
|
Boumova S., Boyvalenkov P., Stoyanova M., Bounds for the minimum distance and covering radius of orthogonal arrays via their distance distributions, 2022 10th International Workshop on Signal Design and Its Applications in Communications (IWSDA), August 1-5, 2022, University of Essex, Colchester, United Kingdom, Publisher:IEEE, 2022, ISSN (print):2150-3680, ISSN (online):2150-3699, ISBN:978-1-6654-5298-4, doi:10.1109/IWSDA50346.2022.9870612, Ref, IEEE Xplore(9870612)
|
2022
|
5
|
Maya Stoyanova, Universal bounds for cardinalities and energy of codes in Hamming spaces, Mathematics and Education in Mathematics, Proceedings of the Fifty First Spring Conference of the Union of Bulgarian Mathematicians, editor/s:Assoc. Prof. Evgenia Sendova, Ph.D., 2022, pages:100-112, ISSN (print):1313-3330, ISSN (online):1313-3330, doi:2-s2.0-85174058670 (Scopus), Ref
|
2022
|
6
|
Boumova, Silvia, Ramaj, Tedis, Stoyanova, Maya, On Covering Radius of Orthogonal Arrays, PROCEEDINGS OF THE 2020 SEVENTEENTH INTERNATIONAL WORKSHOP ON ALGEBRAIC AND COMBINATORIAL CODING THEORY ALGEBRAIC AND COMBINATORIAL CODING THEORY (ACCT 2020), 2020, pages:23-28, ISBN:978-1-6654-0287-3, doi:10.1109/ACCT51235.2020.9383398, Ref, IEEE Xplore, International, PhD
|
2020
|
7
|
Peter G. Boyvalenkov, Peter D. Dragnev, Douglas P. Hardin, Edward B. Saff, Maya M. Stoyanova, On two problems concerning universal bounds for codes , 2019 XVI International Symposium "Problems of Redundancy in Information and Control Systems" (REDUNDANCY 2019), Publisher:IEEE, 2019, pages:58-63, ISBN:978-1-7281-1944-1, doi:10.1109/REDUNDANCY48165.2019.9003329, Ref, Web of Science, IEEE Xplore(978-1-7281-1944-1/19/ 2019 IEEE), International
|
2019
|
8
|
Peter Boyvalenkov, Peter Dragnev, Douglas Hardin, Edward Saff, Maya Stoyanova, Upper bounds for energies of codes of given cardinality and separation, WCC 2019: The Eleventh International Workshop on Coding and Cryptography, Saint-Jacut-de-la-Mer, France, from March 31st to April 5th, 2019, 2019, International
|
2019
|
9
|
S. Boumova, T. Marinova, M. Stoyanova, On ternary orthogonal arrays, Proc. Sixteenth International Workshop on Algebraic and Combinatorial Coding Theory, ACCT-16, Svetlogorsk (Kaliningrad region), Russia, September 2-9, 2018, pages:102-105, PhD
|
2018
|
10
|
Peter G. Boyvalenkov, Peter D. Dragnev, Douglas P. Hardin, Edward B. Saff, Maya M. Stoyanova, Bounding energies and cardinalities of spherical codes with inner products in prescribed interval, WCC 2017: The Tenth International Workshop on Coding and Cryptography, September 18-22, 2017, St. Petersburg, Russia, 2017, International
|
2017
|
11
|
Peter G. Boyvalenkov, Peter D. Dragnev, Douglas P. Hardin, Edward B. Saff, Maya M. Stoyanova, Lower energy bounds for antipodal spherical codes and for codes in infinite projective spaces, 15th International Symposium on Problems of Redundancy in Information and Control Systems (REDUNDANCY 2016), September 26-29, 2016 St. Petersburg, Russia, Publisher:IEEE, 2016, pages:28-32, ISSN (online): 978-1-5090-4231-9, ISBN: 978-1-5090-4232-6, doi:DOI: 10.1109/RED.2016.7779322, Ref, IEEE Xplore, International
|
2016
|
12
|
Peter Boyvalenkov, Tanya Marinova, Maya Stoyanova, New nonexistence results for binary orthogonal arrays, Proc. Fifteenth International Workshop on Algebraic and Combinatorial Coding Theory, ACCT–15, June 18-24, 2016, Albena, Bulgaria , 2016, pages:90-95, PhD
|
2016
|
13
|
Tanya Marinova, Maya Stoyanova, Nonexistence of (9, 112, 4) and (10, 224, 5) binary orthogonal arrays, Proc. Fifteenth International Workshop on Algebraic and Combinatorial Coding Theory, ACCT–15, June 18-24, 2016, Albena, Bulgaria, 2016, pages:221-226, PhD
|
2016
|
14
|
P. Boyvalenkov, P. Dragnev, D. Hardin, E. Saff, M. Stoyanova, Universal Lower Bounds on Energy and LP-Extremal Polynomials for (4,24)-Codes, Proc. Fifteenth International Workshop on Algebraic and Combinatorial Coding Theory, ACCT–15, June 18-24, 2016, Albena, Bulgaria, 2016, pages:84-89, International
|
2016
|
15
|
Peter G. Boyvalenkov, Peter D. Dragnev, Douglas P. Hardin, Edward B. Saff, Maya M. Stoyanova, Energy bounds for codes and designs in Hamming spaces, WCC 2015: Workshop on Coding and Cryptography, Paris, France, April 13-17, 2015., 2015, International
|
2015
|
16
|
Boyvalenkov, P., Dragnev, P., Hardin, D., Saff, E., Stoyanova, M., On the Riesz energy of spherical designs, Proc. Fourteenth International Workshop on Algebraic and Combinatorial Coding Theory, ACCT–14, Svetlogorsk (Kaliningrad region), Russia, September 7–13, 2014, pages:109-114, ISBN: 978-5-901158-26-5, International
|
2014
|
17
|
Peter Boyvalenkov, Hristina Kulina, Maya Stoyanova, Nonexistence of certain binary orthogonal arrays, Proc. Seventh International Workshop on Optimal Codes and Related Topics, OC’13, Albena, Bulgaria, September 6-12, 2013, pages:65-70, ISSN (print): 1313-1117, Ref, Zentralblatt(Zbl 1432.05019)
|
2013
|
18
|
Peter Boyvalenkov, Hristina Kulina, Maya Stoyanova, On (4,9,96) binary orthogonal arrays, Proc. Seventh International Workshop on Optimal Codes and Related Topics, OC’13, Albena, Bulgaria, September 6-12, 2013, pages:71-76, ISSN (print): 1313-1117, Ref, Zentralblatt(Zbl 1432.05020)
|
2013
|
19
|
Peter Boyvalenkov, Maya Stoyanova, An improved algorithm for proving nonexistence of small spherical designs, Proc. Thirteenth International Workshop on Algebraic and Combinatorial Coding Theory, ACCT–13, Pomorie, Bulgaria, 15-21 June, 2012, pages:121-124, ISSN (print): 1313-423X
|
2012
|
20
|
P. Boyvalenkov, M. Stoyanova, New asymptotic bounds for some spherical
(2k - 1)-designs, Proc. Sixth International Workshop on Optimal Codes and Related Topics, OC’09, Varna, Bulgaria, 16-22 June, 2009, pages:49-54, ISSN (print): 1313-1117
|
2009
|
21
|
S. Boumova, P. Boyvalenkov, M. Stoyanova, Nonexistence results for spherical 7-designs, Proc. Eleventh International Workshop on Algebraic and Combinatorial Coding Theory, ACCT–11, Pamporovo, Bulgaria, 16-22 June, 2008, pages:35-39, ISSN (print): 1313-423X
|
2008
|
22
|
S. Boumova, P. Boyvalenkov, H. Kulina, M. Stoyanova, New nonexistence results for spherical 5-designs, Proc. Fifth International Workshop on Optimal Codes and Related Topics, OC’07, White Lagoon, Bulgaria, 16-22 June, 2007, pages:30-35, ISSN (print): 1313-1117
|
2007
|
23
|
P. Boyvalenkov, M. Stoyanova, Bounds on the cardinality of spherical codes with inner products in given range, Proc. Tenth International Workshop on Algebraic and Combinatorial Coding Theory, ACCT–10, Zvenigorod, Russia, 3-9 September, 2006, pages:48-51
|
2006
|
24
|
P. Boyvalenkov, M. Stoyanova, Upper bounds on the covering radius of spherical designs, Proc. Fourth International Workshop on Optimal Codes and Related Topics, OC’05, Pamporovo, Bulgaria, 17-23 June, 2005, pages:53-58, ISBN: 954-8986-18-3
|
2005
|
25
|
P. Boyvalenkov, M. Stoyanova, Some methods for investigation of spherical designs , Proc. Ninth International Workshop on Algebraic and Combinatorial Coding Theory, ACCT–9, Kranevo, Bulgaria, 19-25 June, 2004, pages:86-89, ISBN: 954-8986-14-0
|
2004
|
26
|
P. Boyvalenkov, M. Stoyanova, On spherical (n, M, l, τ)-sets , Proc. Eighth International Workshop on Algebraic and Combinatorial Coding Theory, ACCT–8, Tsarskoe Selo, Russia, 8-14 September, 2002, pages:69-72
|
2002
|
27
|
Grozio Stanilov, Maya Stoyanova, A converse theorem of Morley’s trisector theorem (Обратна теорема на трисекторната теорема на Морлей), Math. Educ. Math., Proc. of Thirtieth Spring Conference of UBM, Borovets, Bulgaria, 8-11 April, 2001, pages:399-404, ISBN: 954-8880-08-3
|
2001
|
28
|
Stoyanova, M. M., On the geometry of a skew-symmetrical curvature operator on 3-dimensional Riemannian manifold, Math. Educ. Math., Proc. of Twenty Second Spring Conference of UBM, Sofia, Bulgaria, 2-5 April, 1993, pages:84-87
|
1993
|
Студия в научно списание |
1
|
Peter Boyvalenkov, Peter Dragnev, Douglas Hardin, Edward Saff, Maya Stoyanova, Universal minima of discrete potentials for sharp spherical codes, submitted., https://arxiv.org/pdf/2211.00092.pdf, 2024, International
|
2024
|
2
|
P. G. Boyvalenkov, P. D. Dragnev, D. P. Hardin, E. B. Saff, M. M. Stoyanova, On polarization of spherical codes and designs, Journal of Mathematical Analysis and Applications, vol:524, issue:1, Article number: 127065, 2023, ISSN (print):0022-247X, ISSN (online):1096-0813, doi:https://doi.org/10.1016/j.jmaa.2023.127065, Ref, Web of Science, IF (1.3 - 2022), Web of Science Quartile: Q2 (84/330 Mathematics, JCR-2022), SCOPUS, SJR (0.833 - 2022), SCOPUS Quartile: Q1 (Analysis, 2022), MathSciNet, International
|
2023
|
3
|
Peter Boyvalenkov, Peter Dragnev, Douglas Hardin, Edward Sfaff, Maya Stoyanova, Energy Bounds for Codes in Polynomial Metric Spaces, Analysis and Mathematical Physics, in Conference Proceedings, as a special issue of the Journal "Analysis and Mathematical Physics", vol:9, issue:2, 2019, pages:781-808, ISSN (print):1664-2368, ISSN (online):1664-235X, doi:https://doi.org/10.1007/s13324-019-00313-x, Ref, Web of Science, IF (2.056 - 2019), Web of Science Quartile: Q1 (Q1 22/325 Math, Q1 40/261 MathApp, JCR-2019), SCOPUS, SJR (0.593 - 2019), SCOPUS Quartile: Q2 (Q2 Alg&NTh, Q2 Analysis, Q2 MathPhys), MathSciNet(MR3977668), International
|
2019
|
4
|
P. G. Boyvalenkov, P. D. Dragnev, D. P. Hardin, E. B. Saff, M. M. Stoyanova, Energy bounds for codes and designs in Hamming spaces, Designs, Codes and Cryptography, vol:82, issue:1, 2017, pages:411-433, ISSN (print): 0925-1022, ISSN (online): 1573-7586, doi: https://doi.org/10.1007/s10623-016-0286-4, Ref, Web of Science, IF (1.114 - 2017), Web of Science Quartile: Q2 (Q2 103/252 MathApp, Q3 53/103 CST&M, 2017 JCR-WoS), SCOPUS, SJR (0.549 - 2017), SCOPUS Quartile: Q2 (Q2 AppMath, Q2 CScApp), MathSciNet(MR3592827), International
|
2017
|
5
|
Мая Стоянова, Български типографски практики в текстовия дизайн на буквара и читанката за първи клас през XX век, Годишник на Софийския университет "Св. Кл. Охридски", ФЖМК, том:24, 2017, стр.:339-364, ISSN (print):1311-4883, Ref, (CEEOL; Електронна библиотека "Медии и комуникации)
|
2017
|
6
|
P. G. Boyvalenkov, P. D. Dragnev, D. P. Hardin, E. B. Saff, M. M. Stoyanova, Universal lower bounds for potential energy of spherical codes, Constructive Approximation, vol:44, issue:3, 2016, pages:385-415, ISSN (print): 0176-4276, ISSN (online): 1432-0940, doi: https://doi.org/10.1007/s00365-016-9327-5, Ref, Web of Science, IF (0.964 - 2016), Web of Science Quartile: Q1 (67/311 Math, 2016 JCR-WoS), SCOPUS, SJR (1.094 - 2016), SCOPUS Quartile: Q1 (Q1 Math. Q1 CompMath, Q2 Analysis), MathSciNet(MR3562402), International
|
2016
|
7
|
Мая Стоянова, Глифови конфигурации и трансформации в неврофизиологичните, когнитивните и психолингвистичните процеси, участващи във формирането на способността за четене, Годишник на Софийския университет "Св. Кл. Охридски", ФЖМК, том:21, 2015, стр.:161-182, ISSN (print):1311-4883 , doi:10.5281/zenodo.13941049, Ref
|
2015
|
Участие в конференция |
1
|
Присъствие, Maya Stoyanova, Universal lower and upper bounds for energy of weighted spherical codes and designs
|
2024
|
2
|
Секционен доклад, Maya Stoyanova, Universal bounds for energy of weighted spherical codes and designs
|
2024
|
3
|
Секционен доклад, Мая Стоянова, UNIVERSAL LOWER BOUNDS ON POLARIZATION OF SPHERICAL CODES AND DESIGNS
|
2023
|
4
|
Секционен доклад, Мая Стоянова, Universal minima of discrete potentials for sharp spherical codes
|
2023
|
5
|
Секционен доклад, Мая Стоянова, Трудни или полезни и забавни са комбинаторните конфигурации
|
2023
|
6
|
Секционен доклад, Maya Stoyanova, Universal bounds on energy and polarization of spherical codes and designs
|
2023
|
7
|
Присъствие, Мая Стоянова, ТРУДНИ ИЛИ ПОЛЕЗНИ И ЗАБАВНИ СА
КОМБИНАТОРНИТЕ КОНФИГУРАЦИИ (през погледа на учениците)
|
2023
|
8
|
Секционен доклад, Мая Стоянова, Universal lower bounds on energy and polarization of spherical codes and designs
|
2022
|
9
|
Секционен доклад, Мая Стоянова, Bounds for cardinalities and energy of codes in Hamming spaces
|
2022
|
10
|
Секционен доклад, Мая Стоянова, Universal lower bounds on the polarization of spherical codes and designs
|
2022
|
11
|
Секционен доклад, Мая Стоянова, Universal bounds for cardinalities and energy of codes in Hamming spaces
|
2022
|
12
|
Секционен доклад, Мая Стоянова, Some new bounds on covering radius of spherical designs
|
2021
|
13
|
Секционен доклад, Мая Стоянова, Some bounds on covering radius and minimum distance of orthogonal arrays
|
2021
|
14
|
Секционен доклад, Мая Стоянова, New bounds on minimum distance and covering radius of orthogonal arrays
|
2021
|
15
|
Секционен доклад, Мая Стоянова, Orthogonal arrays and their distance distributions
|
2021
|
16
|
Секционен доклад, Мая Стоянова, Some LP bounds for covering radius of spherical designs
|
2020
|
17
|
Секционен доклад, Мая Стоянова, Next levels universal bounds for spherical codes: lifting the Levenshtein framework
|
2019
|
18
|
Секционен доклад, Мая Стоянова, Linear Programming Bounds for Cardinality and Energy of Codes of Given Minimum and Maximum Distances
|
2019
|
19
|
Секционен доклад, Мая Стоянова, Bounds for Cardinality and Energy of Codes of Given Min and Max Distances
|
2019
|
20
|
Секционен доклад, Мая Стоянова, On the universal optimality of the 600-cell: the Levenshtein framework lifted,
|
2018
|
21
|
Секционен доклад, Мая Стоянова, Universal linear programming bounds for spherical codes: lifting the Levenshtein framework
|
2018
|
22
|
Секционен доклад, Мая Стоянова, Refinements of Levenshtein bounds in q-ary Hamming spaces
|
2018
|
23
|
Секционен доклад, Мая Стоянова, Refinements of Levenshtein bounds in q-ary Hamming spaces
|
2018
|
24
|
Секционен доклад, Мая Стоянова, "Bounding energies and cardinalities of spherical codes with inner products in a prescribed interval"
|
2017
|
25
|
Секционен доклад, Мая Стоянова, Refinements of Levenshtein bounds in q-ary Hamming spaces
|
2017
|
26
|
Секционен доклад, Мая Стоянова, Computing energy bounds for spherical codes
|
2016
|
27
|
Секционен доклад, Мая Стоянова, New nonexistence results
for binary orthogonal arrays
|
2016
|
28
|
Секционен доклад, Мая Стоянова, Energy bounds for antipodal codes on S^{n-1}
|
2016
|
29
|
Секционен доклад, Мая Стоянова, Minimizing Energy - Computational Aspects.
|
2015
|
30
|
Секционен доклад, Мая Стоянова, Levenshtein – type Bound on Maximal Codes.
|
2015
|
31
|
Секционен доклад, Мая Стоянова, Universal Lower Bounds on Energy - Computational Aspects
|
2015
|
32
|
Секционен доклад, Мая Стоянова, Universal Lower Bound on Energy of Codes in S^{n-1} and H(n,q) - Computational Aspects
|
2015
|
33
|
Секционен доклад, Мая Стоянова, Linear programming bounds for the mesh ratio of spherical designs.
|
2015
|
34
|
Секционен доклад, Мая Стоянова, Bounds on Energy of Spherical Codes
|
2014
|
35
|
Секционен доклад, Мая Стоянова, On the Riesz energy of spherical designs
|
2014
|
36
|
Секционен доклад, Мая Стоянова, Computational algorithms for bounding potential energy of spherical codes and designs
|
2014
|
37
|
Секционен доклад, Мая Стоянова, Подобрен метод за редуциране на възможните спектри на някои двоични ортогонални масиви
|
2014
|
38
|
Секционен доклад, Мая Стоянова, Несъществуване на някои двоични ортогонални масиви
|
2013
|
39
|
Секционен доклад, Мая Стоянова, Nonexistence of certain binary orthogonal arrays
|
2013
|
40
|
Секционен доклад, Мая Стоянова, An improved algorithm for proving nonexistence of small spherical designs
|
2012
|
41
|
Секционен доклад, Мая Стоянова, Подобрения на границите за мощността на някои класове сферични дизайни с нечетна сила
|
2012
|
42
|
Секционен доклад, Мая Стоянова, Improvements of some bounds for spherical designs with odd strength and odd size
|
2011
|
43
|
Секционен доклад, Мая Стоянова, Подобрени методи за изследване на някои класове сферични дизайни
|
2011
|
44
|
Секционен доклад, Мая Стоянова, On the structure of some spherical designs
|
2010
|
45
|
Секционен доклад, Мая Стоянова, Граници за скаларните произведения на някои сферични дизайни
|
2010
|
46
|
Секционен доклад, Мая Стоянова, New asymptotic bounds for some spherical (2k - 1)-designs
|
2009
|
47
|
Секционен доклад, Мая Стоянова, Improvements of some asymptotic bounds for spherical (2k-1)-designs
|
2009
|
48
|
Секционен доклад, Мая Стоянова, Нова асимптотична долна граница за минималната възможна нечетна мощност на сферични (2k-1)-дизайни
|
2009
|
49
|
Секционен доклад, Мая Стоянова, Върху някои сферични дизайни
|
2008
|
50
|
Секционен доклад, Мая Стоянова, New asymptotic bound on the minimum possible odd cardinality of spherical (2k-1)-designs
|
2008
|
51
|
Секционен доклад, Мая Стоянова, Nonexistence results for spherical 7-designs
|
2008
|
52
|
Секционен доклад, Мая Стоянова, New nonexistence results for spherical 5-designs
|
2007
|
53
|
Секционен доклад, Мая Стоянова, Covering radius of spherical
designs
|
2006
|
54
|
Секционен доклад, Мая Стоянова, Bounds on the cardinality of spherical codes with inner products in given range
|
2006
|
55
|
Секционен доклад, Мая Стоянова, Upper bounds on the covering radius of spherical designs
|
2005
|
56
|
Секционен доклад, Мая Стоянова, Polynomial methods for bounding the covering radius of spherical designs
|
2005
|
57
|
Секционен доклад, Мая Стоянова, Some methods for investigation of spherical designs
|
2004
|
58
|
Секционен доклад, Мая Стоянова, On the structure of a class of spherical designs
|
2003
|
59
|
Секционен доклад, Мая Стоянова, On spherical (n, M, l, τ)-sets
|
2002
|
60
|
Секционен доклад, Maya Stoyanova, On the structure of some spherical designs
|
2002
|
61
|
Секционен доклад, Maya Stoyanova, On the geometry of a skew-symmetrical curvature operator on 3-dimensional Riemannian manifold
|
1993
|
|