On finite circular spaces.
On hyperplanes and free subspaces of affine Klingenberg spaces.
On hyperplanes and free subspaces of affine Klingenberg spaces. (Summary).
On perspectivities in incidence geometries of grade n
On Rusakov’s -ary -groups
Properties of -ary groups connected with the affine geometry are considered. Some conditions for an -ary -group to be derived from a binary group are given. Necessary and sufficient conditions for an -ary group -derived from an additive group of a field to be an -group are obtained. The existence of non-commutative -ary -groups which are not derived from any group of arity for every , is proved.
On the interpoint distance sum inequality.
One generalization of planar partitions of Abelian groups