A bound on correlation immunity.
A Bruhat order for the class of -matrices with row sum vector and column sum vector .
A Cauchy-Davenport type result for arbitrary regular graphs.
A Characterization of Designs Related to the Witt System S(5, 8, 24).
A characterization of middle graphs and a matroid associated with middle graphs of hypergraphs
A characterization of the bases of line-splitting matroids.
A characterization of the simplex.
A class of latin squares derived from finite abelian groups
We consider two classes of latin squares that are prolongations of Cayley tables of finite abelian groups. We will show that all squares in the first of these classes are confirmed bachelor squares, squares that have no orthogonal mate and contain at least one cell though which no transversal passes, while none of the squares in the second class can be included in any set of three mutually orthogonal latin squares.
A Class of Unitary Block Designs.
A classification of finite homogeneous semilinear spaces.
A closed formula for the number of convex permutominoes.
A Combinatorial Lemma.
A combinatorial theorem for a symmetric triangulation of the sphere
A common recursion for Laplacians of matroids and shifted simplicial complexes.
A comparison of two upper bounds on the permanent of -matrices. (Ein Vergleich zweier oberer Schranken für die Permanente von -Matrizen.)
A complete annotated bibliography of work related to Sidon sequences.
A Conjecture Concerning The Existence Of Certain Combinatorial Designs.
A connection between ordinary partitions and tilings with dominoes and squares.
A construction method for complete sets of mutually orthogonal frequency squares.
A construction method for generalized Room squares.