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Complete and incomplete Bell polynomials associated with Lah-Bell numbers and polynomials

초록/요약 도움말

The nth r-extended Lah-Bell number is defined as the number of ways a set with n+r elements can be partitioned into ordered blocks such that r distinguished elements have to be in distinct ordered blocks. The aim of this paper is to introduce incomplete r-extended Lah-Bell polynomials and complete r-extended Lah-Bell polynomials respectively as multivariate versions of r-Lah numbers and the r-extended Lah-Bell numbers and to investigate some properties and identities for these polynomials. From these investigations we obtain some expressions for the r-Lah numbers and the r-extended Lah-Bell numbers as finite sums.

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