-partition boards and poly-Stirling numbers.
MacMahon's theorem for a set of permutations with given descent indices and right-maximal records.
MacMahon-type identities for signed even permutations.
Magic -cubes form a free monoid.
Mappings of Acyclic and Parking Functions.
Matchings and partial patterns.
Matchings avoiding partial patterns.
Matchings avoiding partial patterns and lattice paths.
Matrix compositions.
Matroid inequalities from electrical network theory.
Maximum product over partitions into distinct parts.
Mean value for the matching and dominating polynomial
The mean value of the matching polynomial is computed in the family of all labeled graphs with n vertices. We introduce the dominating polynomial of a graph whose coefficients enumerate the dominating sets for a graph and study some properties of the polynomial. The mean value of this polynomial is determined in a certain special family of bipartite digraphs.
Measures of sum-free intersecting families.
Medial quasigroups of prime square order
We prove that, for any prime , there are precisely medial quasigroups of order , up to isomorphism.
Mediations on the product rule.
Meet and join within the lattice of set partitions.
Mémoire sur les combinaisons régulières et leurs applications
Mesh patterns and the expansion of permutation statistics as sums of permutation patterns.
Meta-Fibonacci sequences, binary trees and extremal compact codes.
Methode der periodischen Zahlen und Doppelpartition.