On a Problem About Covering Lines by Squares.
On a problem about covering lines by squares.
On a problem of Molluzzo concerning Steinhaus triangles in finite cyclic groups.
On a Theorem of Livingstone and Wagner.
On a tiling scheme from M. C. Escher.
On a unimodality conjecture in matroid theory.
On Affinite Steiner Ternary Algebras
On algebras of generalized Latin squares
The main result of this paper is the introduction of a notion of a generalized -Latin square, which includes as a special case the standard Latin square, as well as the magic square, and also the double stochastic matrix. Further, the algebra of all generalized Latin squares over a commutative ring with identity is investigated. Moreover, some remarkable examples are added.
On an algorithm for a double-resolvability test.
On approximation of amenable groups by finite quasigroups.
On Averaging Sets.
On Baer Subspaces of Finite Projective Spaces.
On Balanced Room Squares and Complete Balanced Howell Rotations
On biembeddings of Latin squares.
On cardinalities of row spaces of Boolean matrices.
On certain n-connected matroids.
On certain regular graphs of girth 5.
On codes with given minimum distance and covering radius.
On codes with given minimum distance and covering radius.
On collineation groups of translation planes of order .