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Acta Universitatis Sapientiae, Mathematica(1)
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A new approach to the r-Whitney numbers by using combinatorial differential calculus
ArticleAbstract: In the present article we introduce two new combinatorial interpretations of the r-Whitney numbers oPalabras claves:differential operators, r-Dowling polynomial, r-Whitney numberAutores:Miguel A. Mendez, Ramírez J.L.Fuentes:scopusGeneralized ordered set partitions
ArticleAbstract: In this paper, we consider ordered set partitions obtained by imposing conditions on the size of thePalabras claves:Autores:Bényi B., Miguel A. Mendez, Ramírez J.L.Fuentes:scopusRestricted r-Stirling numbers and their combinatorial applications
ArticleAbstract: We study set partitions with r distinguished elements and block sizes found in an arbitrary index sePalabras claves:Combinatorial identities, Generalized Stirling numbers, Generating functions, Set partitionsAutores:Bényi B., Miguel A. Mendez, Ramírez J.L., Wakhare T.Fuentes:scopus