engleski

On construction of block designs

In this talk we will describe a method for the construction of block designs admitting a solvable automorphism group using the tactical decomposition. The method is consisted of two steps: the first step is the construction of mutually nonisomorphic orbit matrices for an arbitrary block design and the second step is the refinement of orbit matrices, based on the application of the composition series for a solvable automorphism group of the design.

Block design ; Automorphism group ; Tactical decomposition ; Orbit matrix ;

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