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- Dragan M. Acketa, Vojislav Mudrinski, Snezana Matic-Kekic
- Ars Comb.
- 1999

- Dragan M. Acketa, Vojislav Mudrinski
- Ars Comb.
- 1999

Using the Kramer-Mesner method, 4-(26, 6, λ) designs with PSL(2, 25) as a group of automorphisms and with λ in the set {30, 51, 60, 81, 90, 111} are constructed. The search uses specific partitioning of columns of the orbit incidence matrix, related to so-called “quasi-designs”. Actions of groups PSL(2, 25), PGL(2, 25) and twisted PGL(2, 25) are being… (More)

- Dragan M. Acketa, Vojislav Mudrinski
- Discrete Mathematics
- 1997

- Dragan M. Acketa, Dragan M. Acketa, Sanja Lozić, Vojislav Mudrinski, Jovisa D. Zunic
- 2004

This article is dedicated to the memory of Professor Dragan Acketa. As a scientist, with a huge research potential and wide research interests, he made essential contributions in many areas of mathematics and computer science. Some of these are matroid and greedoid theory, combinatorial optimization, design theory, theory of algorithms, linear programming,… (More)

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