3 papers
math.CO2025
Steiner 3-designs as extensions
Michael Kiermaier, Vedran Krčadinac, Alfred Wassermann
In this article, we construct a Steiner system with the parameters , settling one of the smallest open parameter sets of Steiner -designs. Furthermore, we establish t…
math.CO2024
Projection cubes of symmetric designs
Vedran Krčadinac, Lucija Relić
We introduce a new type of -dimensional generalization of symmetric block designs. We prove upper bounds on the dimension in terms of and . We also define t…
math.CO2023
Cubes of symmetric designs
Vedran Krčadinac, Mario Osvin Pavčević, Kristijan Tabak
We study -dimensional matrices with -entries (-cubes) such that all their -dimensional slices are incidence matrices of symmetric designs. A known construction of…