Deux propriétés combinatoires des nombres de Schröder
Deux propriétés combinatoires du langage de Lukasiewicz
Diagonal sums of boxed plane partitions.
Diagonalization and rationalization of algebraic Laurent series
We prove a quantitative version of a result of Furstenberg [20] and Deligne [14] stating that the diagonal of a multivariate algebraic power series with coefficients in a field of positive characteristic is algebraic. As a consequence, we obtain that for every prime the reduction modulo of the diagonal of a multivariate algebraic power series with integer coefficients is an algebraic power series of degree at most and height at most , where is an effective constant that only depends on...
Die Anzahl der primitiven Polytope im ... mit 2 d - 2 Facetten.
Die Kombinationen gegebenen Profils. III
Differential equations associated with generalized Bell polynomials and their zeros
In this paper, we study differential equations arising from the generating functions of the generalized Bell polynomials.We give explicit identities for the generalized Bell polynomials. Finally, we investigate the zeros of the generalized Bell polynomials by using numerical simulations.
Direct and elementary approach to enumerate topologies on a finite set.
Discovering hook length formulas by an expansion technique.
Discrete excursions.
Distribution of crossings, nestings and alignments of two edges in matchings and partitions.
Distribution of segment lengths in genome rearrangements.
Distribution of the reduced major index in derangements. (Distribution de l'indice majeur réduit sur les dérangements.)
Dyck paths with no peaks at height .
ECO method and hill-free generalized Motzkin paths.
ECO species.
Edge cover time for regular graphs.
Edit distance between unlabeled ordered trees
There exists a bijection between one-stack sortable permutations (permutations which avoid the pattern (231)) and rooted plane trees. We define an edit distance between permutations which is consistent with the standard edit distance between trees. This one-to-one correspondence yields a polynomial algorithm for the subpermutation problem for (231) pattern-avoiding permutations. Moreover, we obtain the generating function of the edit distance between ordered unlabeled trees and some special ones. For...
Efficient lower bounds on the number of repetition-free words.
Ein Extremalproblem für Gitterpunkte.