Stela Dimitrova Zhelezova
Institute of Mathematics and
Informatics, Bulgarian Academy of Sciences
Research
Interests:
construction and study of combinatorial resolvable designs,
orthogonal resolutions, spreads and parallelisms of projective spaces, cryptographic
properties of boolean functions and S-boxes
Address:
Institute
of Mathematics and Informatics
P.O.Box
323
5000 V.Tarnovo
Bulgaria
e-mail : stela@math.bas.bg
(v,c x u,lambda)-splitting
BIBDs
Number
of Pasch configurations of cyclic STS(45)
Cyclic parallelisms of PG(5,2)
2-parallelisms
of PG(5,2) with automorphisms
of order 31
Transitive
2-parallelisms of PG(5,2)
Regular
parallelisms of PG(3,4) with deficiency m=5
Parallelisms of PG(3,4) with automorphisms of
order 3
Parallelisms
of PG(3,4) with cyclic automorphism
group of order 4
All Parallelisms
of PG(3,4) with full automorphism
group of order 4
Parallelisms
of PG(3,4) with full automorphism
group of order 4m, m > 1
Parallelisms of PG(3,4) with automorphisms of
order 5
Parallelisms of PG(3,4) with automorphisms of
order 7
Parallelisms of PG(3,5) with automorphism of order
13
Parallelisms
of PG(3,5) with cyclic automorphism
group of order 8 and specific structure
Parallelisms
of PG(3,5) with an automorphism
group of order 25