DOIAbstract
AbstractA combinatorial proof is given of a result of Gessel and Greene relating the sizes of two classes of permutations. A natural map from one class to the other is described in terms of a shared recursive structure
AbstractA combinatorial proof is given of a result of Gessel and Greene relating the sizes of two classes of permutations. A natural map from one class to the other is described in terms of a shared recursive structure
International audienceWe consider two recent open problems stating that certain statistics on variou...
In this note we present a combinatorial proof of an identity involving the two kinds of Stirling num...
In this note we present a combinatorial proof of an identity involving the two kinds of Stirling num...
AbstractA combinatorial proof is given of a result of Gessel and Greene relating the sizes of two cl...
We introduce and characterise grid classes, which are natural generalisations of other well-studied ...
We introduce and characterise grid classes, which are natural generalisations of other well-studied ...
Combinatorial reciprocity is a very interesting phenomenon, which can be described as follows: A pol...
We consider two recent open problems stating that certain statistics on various sets of combinatoria...
In this paper we consider the class of permutominoes, i.e. a special class of polyominoes which are ...
International audienceWe consider two recent open problems stating that certain statistics on variou...
International audienceWe consider two recent open problems stating that certain statistics on variou...
AbstractThe concept of the genus of a pair of permutations is defined in the same manner as was done...
International audienceWe consider two recent open problems stating that certain statistics on variou...
In this note we present a combinatorial proof of an identity involving the two kinds of Stirling num...
In this note we present a combinatorial proof of an identity involving the two kinds of Stirling num...
International audienceWe consider two recent open problems stating that certain statistics on variou...
In this note we present a combinatorial proof of an identity involving the two kinds of Stirling num...
In this note we present a combinatorial proof of an identity involving the two kinds of Stirling num...
AbstractA combinatorial proof is given of a result of Gessel and Greene relating the sizes of two cl...
We introduce and characterise grid classes, which are natural generalisations of other well-studied ...
We introduce and characterise grid classes, which are natural generalisations of other well-studied ...
Combinatorial reciprocity is a very interesting phenomenon, which can be described as follows: A pol...
We consider two recent open problems stating that certain statistics on various sets of combinatoria...
In this paper we consider the class of permutominoes, i.e. a special class of polyominoes which are ...
International audienceWe consider two recent open problems stating that certain statistics on variou...
International audienceWe consider two recent open problems stating that certain statistics on variou...
AbstractThe concept of the genus of a pair of permutations is defined in the same manner as was done...
International audienceWe consider two recent open problems stating that certain statistics on variou...
In this note we present a combinatorial proof of an identity involving the two kinds of Stirling num...
In this note we present a combinatorial proof of an identity involving the two kinds of Stirling num...
International audienceWe consider two recent open problems stating that certain statistics on variou...
In this note we present a combinatorial proof of an identity involving the two kinds of Stirling num...
In this note we present a combinatorial proof of an identity involving the two kinds of Stirling num...
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