Svetlana Todorova Topalova

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Institute of Mathematics and Informatics, Bulgarian Academy of Sciences.

 

Research Interests: construction and study of combinatorial designs and error-correcting codes, resolvable designs, orthogonal resolutions, spreads and packings of projective spaces, automorphism groups of designs and codes

Personal Data

Where I work - the institute, the town of Veliko Tarnovo, the colleagues

List of main publications

 

Address

 

Svetlana Topalova

Institute of  Mathematics and Informatics

P.O.Box 323

5000 V.Tarnovo

Bulgaria

 e-mail  svetlana@math.bas.bg

 

Hadamard matrices of  order 44 with automorphisms of order 7

Hadamard 2-(63,31,15) designs invariant under the dihedral group of order 10

Hadamard matrices of order 64 from 2-(63,31,15) designs invariant under the dihedral group of order 10

Line spreads of PG(5,2)

Doubly resolvable designs (DRD) with small parameters and their sets of m mutually orthogonal resolutions (m-MORs)

1-parallelisms of PG(3,4) with automorphisms of order 7

2-parallelisms of PG(5,2) with automorphisms of order 31

Transitive 2-parallelisms of PG(5,2)

Parallelisms of PG(3,4) with automorphisms of orders 7 and 5

Book spreads of PG(7,2)

Resolutions of cyclic STS(v) with v ≤ 39

Conflict-avoiding codes for 3, 4 and 5 active users

Conflict-avoiding codes for 6 and 7 active users

Tight conflict-avoiding codes for 3, 4, 5, 6 and 7 active users

Strongly conflict-avoiding codes for 3, 4 and 5 active users

Permutations for the Improved GFS (k ≤ 16)

Permutations for the Improved GFS (2 ≤ k ≤ 2048)