Polynomial modular n-queens solutions
Principes de la méthode de M. Arnoux concernant l'étude des espaces arithmétiques hypermagiques
Quasigroups and tactical systems.
Quintuplication of Room Squares
-rozměrné konfigurace. II.
Radonpartitionen und konvexe Polyeder.
Rectangular and trapezoidal arrangements.
Regular linear spaces.
Regulated buildups of 3-configurations
We deal with two types of buildups of 3-configurations: a generating buildup over a given edge set and a regulated one (according to maximal relative degrees of vertices over a penetrable set of vertices). Then we take account to minimal generating edge sets, i.e., to edge bases. We also deduce the fundamental relation between the numbers of all vertices, of all edges from edge basis and of all terminal elements. The topic is parallel to a certain part of Belousov' “Configurations in algebraic...
Room designs and one-factorizations.
Rotary polygons in configurations.
Sets in the plane with many concyclic subsets.
Simple minimum coverings of Kn with copies of K4 - e.
Skeletons in multigraphs
Under a multigraph it is meant in this paper a general incidence structure with finitely many points and blocks such that there are at least two blocks through any point and also at least two points on any block. Using submultigraphs with saturated points there are defined generating point sets, point bases and point skeletons. The main result is that the complement to any basis (skeleton) is a skeleton (basis).
Small forbidden configurations. II.
Solution of Moufang problems.
Some remarks on the Steiner triple systems associated with Steiner quadruple systems
Some results on odd astral configurations.
Some results on the problem of Erdös and Hajnal.
Sublattices of certain Coxeter lattices
In this paper, we describe the sublattices of some lattices, extending previous results of [Ber]. Our description makes intensive use of graphs.