Публикации на Мая Стоянова

Статии

1. Improved approaches for investigation of small spherical designs, (with P. G. Boyvalenkov), Compt. rend. Acad. bulg. Sci., 2012, (to appear).
2. A new asymptotic bound of the minimum possible odd cardinality of spherical (2k-1)-designs, (with P. G. Boyvalenkov), Discrete Mathematics, 2010, Vol. 310, Issues 15-16, pp. 2170-2175, (DOI 10.1016/j.disc.2010.04.007, Available online: 13 May 2010), Impact Factor: 0.536 (2010).
3. New asymptotic bounds for some spherical (2k-1)-designs, (with P. G. Boyvalenkov), Proc. Intern. Workshop OC’09, Varna, Bulgaria, 16-22 June 2009, pp. 49-54.
4. On the structure of some spherical codes and designs, PhD Thesis, Sofia University, Sofia, Bulgaria, 2009.
5. A method for proving nonexistence of spherical designs of odd strength and odd cardinality, (with S. P. Bumova, P. G. Boyvalenkov), Problems of Information Transmission, 2009, Vol. 45, No. 2, pp. 110-123, (DOI: 10.1134/S0032946009020033, Original Russian Text Published in Problemy Peredachi Informatsii, 2009, Vol. 45, No. 2, pp. 41-55), Impact Factor: 0.435 (2009).
6. Nonexistence results for spherical 7-designs, (with S. P. Bumova, P. G. Boyvalenkov), Proc. Eleventh International Workshop on Algebraic and Combinatorial Coding Theory, Pamporovo, Bulgaria, 16-22 June 2008, pp. 35-39.
7. Polynomial techniques for investigation of spherical designs, (with S. P. Bumova, P. G. Boyvalenkov, H. Kulina), Designs, Codes and Cryptography, 2009, Vol. 51, Issue 3, pp. 275-288, (DOI 10.1007/s10623-008-9260-0, Published online: 19 December 2008), Impact Factor: 0.825 (2009).
8. New nonexistence results for spherical 5-designs, (with S. P. Bumova, P. G. Boyvalenkov, H. Kulina), Scientific Research, a Journal of South-West University, Blagoevgrad, Bulgaria, 2007, 14 pages.
9. New nonexistence results for spherical 5-designs, (with S. P. Bumova, P. G. Boyvalenkov, H. Kulina), Proc. Intern. Workshop OC'07, White Lagoon, Bulgaria, 16-22 June 2007, pp. 30-35.
10. Bounds on the cardinality of spherical codes with inner products in given range, (with P. Boyvalenkov), Proc. Tenth International Workshop on Algebraic and Combinatorial Coding Theory, Zvenigorod, Russia, 3-9 September, 2006, pp. 48-51.
11. Upper bounds on the covering radius of spherical designs, (with P. Boyvalenkov), Proc. Fourth International Workshop on Optimal Codes and Related Topics, Pamporovo, Bulgaria, 17-23 June, 2005, pp. 53-58.
12. Some methods for investigations of spherical designs, (with P. Boyvalenkov), Proc. Ninth Intern. Workshop on Algebraic and Combinatorial Coding Theory, Kranevo, Bulgaria, 19-25 June, 2004, pp. 86-89.
13. On spherical (n,M,I,t)-sets, (with P. Boyvalenkov), Proc. Eighth Intern. Workshop on Algebraic and Combinatorial Coding Theory, Tsarskoe Selo, Russia, 8-14 September, 2002, pp. 69-72.
14. Spherical 2-distance sets which are spherical 3-designs, (with P. Boyvalenkov), Annuaire L'Univ Sofia, Fac. Math. and Inform., 2004, Vol. 95, pp. 53-58 (received on December 14, 2001).
15. A converse theorem of Morley's trisector theorem, (with G. Iv. Stanilov), Math. Educ. Math., Proc. of Thirtieth Spring Conference of UBM, Borovets, Bulgaria, 8-11 April, 2001, pp. 399-404.
16. 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, pp. 84-87.

Абстракти

1. Improvements of some bounds for spherical designs with odd strength and odd size, (with P. Boyvalenkov), Annual Workshop on Coding Theory and Applications, Gabrovo, Bulgaria, 15-18 December, 2011, р. 20.
2. On the structure of some spherical designs,(with P. Boyvalenkov), Abstract Booklet, International Congress in Honour of Professor H. M. Srivastava on his 70th Birth Anniversary at Uludag University, Bursa, Turkey, 18-21 August, 2010, N: 98, p. 117.
3. On the structure of some spherical 4-designs, (with P. Boyvalenkov), Annual Workshop on Coding Theory and Applications, Bachinovo (near to Blagoevgrad), Bulgaria, 26-29 November, 2009, (to appear).
4. Improvements of some asymptotic bounds for spherical (2k-1)-designs,(with P. Boyvalenkov), MASSEE, International Congress on Mathematics MICOM 2009, Ohrid, Republic of Macedonia, 16-20 September, 2009, p. 18.
5. New asymptotic bound on the minimum possible odd cardinality of spherical (2k-1)-designs, (with P. Boyvalenkov), Annual Workshop on Coding Theory and Applications, Veliko Turnovo, Bulgaria, 11-14 December, 2008 (to appear).
6. New nonexistence results for spherical 3-designs, (with S.Boumova, P. Boyvalenkov), Annual Workshop on Coding Theory and Applications, Borovetz, Bulgaria, 15-17 November, 2007 (to appear).
7. Bounds on inner products of spherical designs, (with P. Boyvalenkov, H. Kulina), Annual Workshop on Coding Theory and Applications /Abstracts/, Bachinovo (near to Blagoevgrad), Bulgaria, 30 November - 03 December, 2006, p. 8.
8. Bounds on the covering radius of spherical designs, (with P. Boyvalenkov), MASSEE International Congress on Mathematics MICOM 2006, /Abstracts/, Cyprus, May 31 - June 4, 2006.
9. Bounds on the covering radius of spherical designs, (with P. Boyvalenkov), Annual Workshop on Coding Theory and Applications /Abstracts/, Bankya, Bulgaria, 15-18 December, 2005, p. 9.
10. On the structure of spherical 2k-designs of relatively small cardinalities, (with P. Boyvalenkov), Annual Workshop on Coding Theory and Applications /Abstracts/, Bankya, Bulgaria, 11-14 December, 2003, p. 10.
11. On the structure of a class of spherical designs, (with P. Boyvalenkov), International Congress MASSEE'2003, /Abstracts/, Borovets, Bulgaria, 15-21 September, 2003, p. 160.
12. On the structure of some spherical designs, (with P. Boyvalenkov), Annual workshop on Coding Theory and Applications /Abstracts/, Bankya, Bulgaria, 11-15 December, 2002, p. 13.

Доклади на конференции

1. International Congress in Honour of Professor H. M. Srivastava on his 70th Birth Anniversary at Uludag University, Bursa, Turkey, 18-21 August, 2010.
2. MASSEE International Congress on Mathematics MICOM 2009, Ohrid, Republic of Macedonia, 16-20 September, 2009.
3. Sixth International Workshop on Optimal Codes and Related Topics, Varna, Bulgaria, 16-22 June, 2009.
4. Eleventh International Workshop on Algebraic and Combinatorial Coding Тheory, Pamporovo, Bulgaria, 16-22 June, 2008.
5. Fifth International Workshop on Optimal Codes and Related Topics, White Lagoon, Bulgaria, 16-22 June, 2007.
6. Tenth International Workshop on Algebraic and Combinatorial Coding Тheory, Zvenigorod, Russia, 3-9 September, 2006.
7. International Conference Pioneers of Bulgarian Mathematics, Sofia University ”St. Kliment Ohridski”, Faculty of Mathematics and Informatics, Sofia, Bulgaria, 8-10 July, 2006.
8. Fourth International Workshop on Optimal Codes and Related Topics, Pamporovo, Bulgaria, 17-23 June, 2005.
9. Ninth International Workshop on Algebraic and Combinatorial Coding Тheory, Kranevo, Bulgaria, 19-25 June, 2004.
10. Eighth International Workshop on Algebraic and Combinatorial Coding Тheory, Tsarskoe Selo, Russia, 8-14 September, 2002.
11. Twenty Second Spring Conference of UBM, Sofia, 2-5 April, 1993.