Maya Miteva Stoyanova

Maya Miteva Stoyanova

Associate professor
PhD
Deputy Dean Research and International Affairs, PhD students
Email: 
stoyanova@fmi.uni-sofia.bg
Phone: 
+359 2 8161 664
Room: 
FMI-518
Office hours: 

Tuesday from 11:00 to 13:00
Wednesday from 14:30 to 16:00

Publications

  1. Peter G. Boyvalenkov, Peter D. Dragnev, Douglas P. Hardin, Edward B. Saff, Maya M. StoyanovaUpper bounds for energies of codes of given cardinality and separationThe Eleventh International Workshop on Coding and Cryptography (WCC 2019), submitted.
  2. P. G. Boyvalenkov, P. D. Dragnev, D. P. Hardin, E. B. Saff, M. M. Stoyanova, Energy Bounds for Codes in Polynomial Metric Spaces, submitted, https://arxiv.org/abs/1804.07462.
  3. Silvia Boumova, Tanya Marinova, Maya 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, pp.102-105, http://acct2018.skoltech.ru/.
  4. 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, 2018, in press, (Available online: 26 July 2018https://doi.org/10.1007/s10623-018-0524-z), Impact Factor: 1.114 (2017), Q2 (Q53/103 CST&M, Q2103/252 MathApp, 2017 JCR-WoS)https://arxiv.org/abs/1801.07334.
  5. Peter Boyvalenkov, Danyo Danev, Maya Stoyanova, Refinements of Levenshtein bounds in q- ary Hamming spaces, Problems of Information Transmission, 2018, Vol. 54, No. 4, pp. 35–50, (Received December 2017, Original Russian Text Published in Problemy Peredachi Informatsii, 2018, Vol. 54, No. 4, pp. 1–17), Impact Factor: 0.359 (2017), Q4 (Q99/103 CST&M, Q245/252 MathApp, 2017 JCR-WoS), https://arxiv.org/abs/1801.01982.
  6. 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, The Tenth International Workshop on Coding and Cryptography, St. Petersburg, Russia, September 18-22, 2017, http://wcc2017.suai.ru/.
  7. 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, (Announced in [28]), vol. 57, March 2017, pp. 153-159, SJR 0.320, http://doi.org/10.1016/j.endm.2017.02.026, SNIP 0.389 (2016), http://www.sciencedirect.com/science/article/pii/S1571065317300264
  8. 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, (Announced in [30]), vol. 57, March 2017, pp. 91-96, http://dx.doi.org/10.1016/j.endm.2017.02.016, SJR 0.320, SNIP 0.389 (2016), http://www.sciencedirect.com/science/article/pii/S1571065317300161.
  9. P. G. Boyvalenkov, P. D. Dragnev, D. P. Hardin, E. B. Saff, M. M. Stoyanova, Energy bounds for antipodal spherical codes and in infinite projective spaces, XV International Symposium "Problems of Redundansy in Information and control Systems', September 26-29, 2016, St. Petersburg, Russia, 2016, 978-1-5090-4231-9/16/2016 IEEE, pp. 28 - 32. http://ieeexplore.ieee.org/stamp/stamp.jsp?arnumber=7779322.
  10. Peter Boyvalenkov, Tanya Marinova, Maya Stoyanova, Nonexistence of a few binary orthogonal arrays, Discrete Applied Mathematics, 217(2), 2017, pp. 144-150, (Announced in [29], Available online 30 August 2016), Impact Factor: 0.932 (2017), Q3 (136/252 MathApp, 2017 JCR-WoS), http://www.sciencedirect.com/science/article/pii/S0166218X1630364Xhttp://arxiv.org/abs/1604.06117.
  11. P. G. Boyvalenkov, P. D. Dragnev, D. P. Hardin, E. B. Saff, M. 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, pp. 84-89, https://www.researchgate.net/publication/303693528_Universal_Lower_Bounds_on_Energy_and_LP-Extremal_Polynomials_for_424-Codes.
  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, pp. 90-95, https://www.researchgate.net/publication/303693339_New_nonexistence_results_for_binary_orthogonal_arrays.
  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, pp. 221-226, https://www.researchgate.net/publication/303702618_Nonexistence_of_9_112_4_and_10_224_5_binary_orthogonal_arrays.
  14. Peter Boyvalenkov, Tanya Marinova, Maya Stoyanova, Mila Sukalinska, Distance distributions and energy of designs in Hamming spaces, Serdica Journal of Computing, Vol. 9 (2), 2015, pp. 139-150, http://serdica-comp.math.bas.bg/index.php/serdicajcomputing/article/view/251.
  15. 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 I, 2017, pp. 411-433, DOI: 10.1007/s10623-016-0286-4, Impact Factor: 1.114 (2017), Q2 (Q53/103 CST&M, Q103/252 MathApp, 2017 JCR-WoS), https://link.springer.com/article/10.1007/s10623-016-0286-4http://arxiv.org/pdf/1510.03406v1.pdf.
  16. 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, ISSN 20356803 – Padova University Press, Special Issue for the “10 years of the Padua points”, http://dx.doi.org/10.14658/pupj-drna-2015-Special_Issue-6, Volume 8, 2015, pp. 51- 65,  http://drna.padovauniversitypress.it/2015/specialissue/6http://arxiv.org/pdf/1509.07837v1.pdf.
  17. 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, 44 (3), 2016, pp. 385-415, DOI: 10.1007/s00365-016-9327-5, Impact Factor: 0.964 (2016), Q1 (67/311 Math, 2016 JCR-WoS), http://link.springer.com/article/10.1007/s00365-016-9327-5http://arxiv.org/pdf/1503.07228.pdf.
  18. Peter G. Boyvalenkov, Peter D. Dragnev, Douglas P. Hardin, Edward B. Saff, Maya M. Stoyanova, Energy bounds for codes and designs in Hamming spaces, Workshop on Coding and Cryptography, Paris, France, April 13–17, 2015, http://wcc2015.inria.fr/papers.html.
  19. Boyvalenkov P., Kulina H., Marinova T., Stoyanova M., Nonexistence of binary orthogonal arrays via their distance distributions, Problems of Information Transmission, 2015, vol. 51, No 4, pp. 326-334, (Received December 2014, Original Russian Text Published in Problemy Peredachi Informatsii, 2015, Vol. 51, No. 4, pp. 23-31, DOI: 10.1134/S003294601504002X), Impact Factor: 0.632 (2015), Q3 (Q80/105 CST&M, Q177/254 MathApp, 2015 JCR-WoS), http://link.springer.com/article/10.1134/S003294601504002X.
  20. 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, pp. 109–114, http://www.moi.math.bas.bg/acct2014/a18.pdf.
  21. 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, pp. 71-76, http://www.moi.math.bas.bg/oc2013/a11.pdf.
  22. 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, pp. 65-70, http://www.moi.math.bas.bg/oc2013/a10.pdf.
  23. Peter Boyvalenkov, Maya Stoyanova, New nonexistence results for spherical designs, Advances in Mathematics of Communications, 2013, Vol. 7, № 3, 2013, pp. 279-292, (DOI: 10.3934/amc.2013.7.279, Received: July 2012, Revised: March 2013, Available online: July 2013), Impact Factor: 0.651 (2013), Q3 (Q60/102 CST&M, Q3154/251 MathApp, 2013 JCR-WoS), http://www.aimSciences.org
  24. 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, pp. 121-124, http://www.moi.math.bas.bg/acct2012/acct2012.html.
  25. Peter Boyvalenkov, Maya Stoyanova, Improved approaches for investigation of small spherical designs, Compt. rend. Acad. Bulg. Sci., 2012,  Vol. 65, № 6, pp. 743-750, Impact Factor: 0.211 (2012), Q4 (46/56 MultidSc, 2012 JCR-WoS), http://www.proceedings.bas.bg/.
  26. Peter Boyvalenkov, Maya Stoyanova, A new asymptotic bound of the minimum possible odd cardinality of spherical (2k-1)-designs, 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), Q3 (163/279 Math, 2010 JCR-WoS), http://www.sciencedirect.com/science/article/pii/S0012365X10001408.
  27. Peter Boyvalenkov, Maya 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, pp. 49-54, http://www.moi.math.bas.bg/oc2009/a9.pdf.
  28. Maya Stoyanova, On the structure of some spherical codes and designs, PhD Thesis, Sofia University, Sofia, Bulgaria, 2009, https://store.fmi.uni-sofia.bg/fmi/algebra/stoyanova/PhD_thesis_MS.pdf.
  29. S. P. Boumova, P. G. Boyvalenkov, M. M. Stoyanova, A method for proving nonexistence of spherical designs of odd strength and odd cardinality, 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), Q4 (Q83/92 CST&M, Q183/204 MathApp, 2009 JCR-WoS), http://www.springerlink.com/content/j38w25728jk60728/.
  30. S. P. Boumova, P. G. Boyvalenkov, M. 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, pp. 35-39, http://www.moi.math.bas.bg/acct2008/b6.pdf.
  31. S. P. Boumova, P. G. Boyvalenkov, H. Kulina, M. M. Stoyanova, Polynomial techniques for investigation of spherical designs, 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), Q2 (Q60/92 CST&M, Q102/204 MathApp, 2009 JCR-WoS), http://www.springerlink.com/content/82558663w81hnp05/.
  32. S. P. Boumova, P. G. Boyvalenkov, H. Kulina, M. M. Stoyanova, New nonexistence results for spherical 5-­designs, Scientific Research, a Jornal of South­-West University, Blagoevgrad, Bulgaria, 2007, 14 pages, http://press.swu.bg/volume-collection/volume-5/new-nonexistence-results-for-spherical-5-designs.aspx.
  33. S. P. Boumova, P. G. Boyvalenkov, H. Kulina, M. 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, pp. 30­-35, https://www.researchgate.net/publication/270274354_New_nonexistence_results_for_spherical_5-designs.
  34. P. G. Boyvalenkov, M. 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, 03­-09 September, 2006, pp. 48­-51, https://www.researchgate.net/publication/259389708_Bounds_on_the_cardinality_of_spherical_codes_with_inner_products_in_given_range.
  35. P. G. Boyvalenkov, M. 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, pp. 53­-58, https://www.researchgate.net/publication/259389891_Upper_bounds_on_the_covering_radius_of_spherical_designs.
  36. P. G. Boyvalenkov, M. 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, pp. 86-89, https://www.researchgate.net/publication/259390024_Some_methods_for_investigations_of_spherical_designs.
  37. P. G. Boyvalenkov, M. M. Stoyanova, On spherical (n, M, l, τ)­-sets, Proc. Eighth International Workshop on Algebraic and Combinatorial Coding Theory, ACCT–8, Tsarskoe Selo, Russia, 08-­14 September, 2002, pp. 69­-72, https://www.researchgate.net/publication/259389954_On_spherical_nMIt-sets.
  38. P. G. Boyvalenkov, M. M. Stoyanova, Spherical 2­-distance sets which are spherical 3-­designs, Ann. Sofia Univ., 2004, Vol. 95, pp. 53-­58 (received on Dec. 14, 2001).
  39. G. Stanilov, M. M. Stoyanova, A converse theorem of Morley’s trisector theorem, Math. Educ. Math., Proc. of Thirtieth Spring Conference of UBM, Borovets, Bulgaria, 08-11 April, 2001, pp. 399-­404, http://www.math.bas.bg/smb/PK/30-2001.pdf.
  40. M. M. Stoyanova, 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, 02-05 April, 1993, pp. 84-­87, http://www.math.bas.bg/smb/PK/22-1993.pdf.