A game of composing binary relations
A generalization of combinatorial Nullstellensatz.
A Generalization of Functions !n and n!
A Generalization of Hanani's Theorem on Partial Order.
A generalization of Pascal’s triangle using powers of base numbers
In this paper we generalize the Pascal triangle and examine the connections among the generalized triangles and powering integers respectively polynomials. We emphasize the relationship between the new triangles and the Pascal pyramids, moreover we present connections with the binomial and multinomial theorems.
A generalization of Simion-Schmidt's bijection for restricted permutations.
A generalization of Stirling numbers of the second kind via a special multiset.
A generalization of the dichromatic polynomial of a graph.
A Generalization of the Matrix-Tree Theorem.
A generalized formula of Hardy.
A generalized major index statistic.
A generating functions proof of a curious identity.
A Gessel--Viennot-type method for cycle systems in a directed graph.
A high-tech proof of the Mills-Robbins-Rumsey determinant formula.
A Hilton-Milner theorem for vector spaces.
A homeomorphism of Q with Q as an orbit.
A hybrid of Darboux's method and singularity analysis in combinatorial asymptotics.
A large dihedral symmetry of the set of alternating sign matrices.
A left weighted Catalan extension.
A lemma and a conjecture on the cost of rearrangements