Radinka Yorgova
Post-doc Fellow
E-mail: radinka.yorgova@ii.uib.no
Address:(Room 5153) Department of Informatics University of Bergen The High-Technology Centre Ltd. N-5020, Bergen, Norway Telephone: +47 55 58 41 74 Telefax: +47 55 58 41 99
Research Interests: Coding theory, Combinatorics, Algebra
Publications
PhD Thesis
Constructing self-dual codes using an automorphism group, DUP Science, The Netherlands (2002).
Reports
1.On the automorphism group of binary self-dual codes of length 72, IKAT/Department of Computer Science, Universiteit Maastricht, The Netherlands, October 2002 (with A.J.van Zanten and S.M.Dodunekov).
2. Hilbert 17-th problem for ternary forms, global optimization of rational functions with 2 variables, December, 2003.
3. Linear Temporary Logic, Buchi Automaton and Translations between, Technical report, February 2005, (with M. Fisher and C. Dixon).
In Journals
1. New binary [70,35,12] self-dual and binary [72,36,12] self-dual doubly-even codes, Serdica Math. J., 27, No. 4 (2001) 287-302.
2. On the Doubly-Even Self-Dual Codes of Length 96, IEEE Trans. Inform. Theory, 48 (2002) 557-561.
3. New extremal self-dual codes of length 62 and related extremal self-dual codes, IEEE Trans. Inform. Theory, 48 (2002) 2060-2064 (with M.Harada).
4. Some Extremal Self-Dual Codes with an Automorphism of Order 7, Appl. Algebra Eng. Comm. Computing, 14 (2003) 75-79 (with M.Harada).
5. Extremal Doubly-Even [80,40,16] Codes with an Automorphism of Order 19, Finite Fields and Their Applications, 9 (2003) 157-167 (with M.Harada).
6. The Extremal Codes of lengths 76 with Automorphism of Order 19, Finite Fields and Their Applications, 9 (2003) 395-339 (with V.Yorgov).
7. Binary self-dual codes with automorphisms of composite order, IEEE Trans. Inform. Theory 50 (2004) 311-318 (with A.J.van Zanten and S.M.Dodunekov).
8. New extremal self-dual codes of length 66, submitted to Mathematica Balkanica (09.12.2005), (with T. Nishimura and M. Harada).
9. Constructing self-dual codes using an automorphism group, submitted to IEEE Trans. Inform. Theory (28.09.2006).
At Conferences and Workshops
1. The binary self-dual [34,17,6] codes with automorphism of odd prime order greater than 3, Mathematics and Education in Mathematics, Proc.27-th Conf. of UBM, Pleven, Bulgaria (1998), 161-166 (with V.Yorgov).
2. On the optimal code of length 56, Proc. Intern.Workshop on Optimal Codes and Related Topics, Sozopol, Bulgaria (1998) 74-79 (with V.Yorgov).
3. On the no existence of a [80,40,16] self-dual code with an automorphism of odd prime order greater than 7, Mathematics and Education in Mathematics, Proc. 28-th Conf. of UBM, Montana, Bulgaria (1999).
4. On the automorphism group of [96,48,20] self-dual code of Type II, Proc. Intern.Workshop on Algebraic and Combinatorial Coding Theory, Bansko, Bulgaria (2000) 122-125.
5. On the binary self-dual codes of length 70, Mathematics and Education in Mathematics, Proc. 30-th Conf. of UBM, Borovets, Bulgaria (2001) 124-128.
6. On the binary extremal codes of length 92, Intern.Workshop on Optimal Codes and Related Topics, Sunny Beach, Bulgaria (2001) 53-58 (with R.Russeva and N.Ziapkov).
7. Binary self-dual codes with automorphisms of odd prime order, EIDMA Symposium, Oostende, Belgium (October 2001) (with A.J.van Zanten).
8. Binary self-dual codes with automorphisms of odd order, EIDMA Seminar Coding, Crypto & Information Theory, Eindhoven, The Netherlands (January 2002).
9. Binary self-dual codes with an automorphism of non-prime order, Proc. Intern. Workshop on algebraic and combinatorial coding theory, St. Petersbourg, Russie (2002) 85-90 (with A.J.van Zanten and S.M.Dodunekov).
10. Constructing self-dual codes using an automorphism group, invited talk , Seminario del Dpto. De Algebra, Geometria y Topologia, Dep. Matematica Aplicada Fundamental, Universidad de Valladolid, Spain, 04.11.2002.
11. New self-dual [120,60,20] and [96,48,16] codes, Proc. Intern. Workshop on algebraic and combinatorial coding theory, Bulgaria (2004) 137-142 (with Alfred Wassermann).
12. On the automorphism group of an optimal code of length 56, Proc. 9th Intern. Workshop on algebraic and combinatorial coding theory, Pamporovo, Bulgaria (2005) 292-297.
13. Binary self-dual extremal codes of length 92, Proceedings IEEE International Symposium on Information Theory, Seattle, USA (2006) 1292-1295.
14. Constructing self-dual codes using an automorphism group, invited talk, 2006 IEEE Information Theory Workshop, Chengdu, China (2006) 11-15.
15. On binary [80,40,16] self-dual codes, accepted, 5th Intern. Workshop on Optimal Codes and Related Topics, 16-22 June 2007, Balchik, Bulgaria, (with R.Russeva).
16. On the binary self-dual doubly-even codes of length 112, submitted to 2007 IEEE Informational Theory Workshop, 2-6 September 2007, Lake Tahoe, CA, US.