Results 1 to 10 of about 30,485 (178)

Refinements of the Bell and Stirling numbers [PDF]

open access: yesTransactions on Combinatorics, 2018
‎‎We introduce new refinements of the Bell‎, ‎factorial‎, ‎and unsigned Stirling numbers of the first and second kind that unite the derangement‎, ‎involution‎, ‎associated factorial‎, ‎associated Bell‎, ‎incomplete Stirling‎, ‎restricted factorial ...
Tanay Wakhare
doaj   +3 more sources

Extended Bell and Stirling numbers from hypergeometric exponentiation [PDF]

open access: yes, 2001
Exponentiating the hypergeometric series 0FL(1,1,...,1;z), L = 0,1,2,..., furnishes a recursion relation for the members of certain integer sequences bL(n), n = 0,1,2,....
A. I. Extended Bell   +6 more
core   +7 more sources

Combinatorial approach to generalized Bell and Stirling numbers and boson normal ordering problem [PDF]

open access: yesJournal of Mathematical Physics, 2005
We consider the numbers arising in the problem of normal ordering of expressions in canonical boson creation and annihilation operators. We treat a general form of a boson string which is shown to be associated with generalizations of Stirling and Bell ...
Bergeron F.   +6 more
core   +3 more sources

A Combinatorial Model for $q$-Generalized Stirling and Bell Numbers [PDF]

open access: yesDiscrete Mathematics & Theoretical Computer Science, 2008
We describe a combinatorial model for the $q$-analogs of the generalized Stirling numbers in terms of bugs and colonies. Using both algebraic and combinatorial methods, we derive explicit formulas, recursions and generating functions for these $q ...
Miguel Méndez, Adolfo Rodríguez
doaj   +4 more sources

A formula relating Bell polynomials and Stirling numbers of the first kind

open access: yesEnumerative Combinatorics and Applications, 2021
Summary: In this paper, we prove a general convolution formula involving the Bell polynomials and the Stirling numbers of the first kind. Our proof of the formula is algebraic and establishes an equivalent identity involving the associated exponential generating function, where we make use of induction, manipulation of finite sums and several ...
Mark Shattuck
doaj   +3 more sources

Note on the Higher-Order Derivatives of the Hyperharmonic Polynomials and the r-Stirling Polynomials of the First Kind

open access: yesAxioms, 2022
In this paper, we focus on the higher-order derivatives of the hyperharmonic polynomials, which are a generalization of the ordinary harmonic numbers. We determine the hyperharmonic polynomials and their successive derivatives in terms of the r-Stirling ...
José L. Cereceda
doaj   +1 more source

New Properties on Degenerate Bell Polynomials

open access: yesComplexity, 2021
The aim of this paper is to study the degenerate Bell numbers and polynomials which are degenerate versions of the Bell numbers and polynomials. We derive some new identities and properties of those numbers and polynomials that are associated with the ...
Taekyun Kim   +4 more
doaj   +1 more source

On the Total Positivity and Accurate Computations of r-Bell Polynomial Bases

open access: yesAxioms, 2023
A new class of matrices defined in terms of r-Stirling numbers is introduced. These r-Stirling matrices are totally positive and determine the linear transformation between monomial and r-Bell polynomial bases.
Esmeralda Mainar   +2 more
doaj   +1 more source

The 2-successive partial Bell polynomials [PDF]

open access: yesNotes on Number Theory and Discrete Mathematics, 2023
In this paper, we discuss a new class of partial Bell polynomials. The first section gives an overview of partial Bell polynomials and their related 2-successive Stirling numbers.
Meriem Tiachachat, Miloud Mihoubi
doaj   +1 more source

Some Identities of Degenerate Bell Polynomials

open access: yesMathematics, 2020
The new type degenerate of Bell polynomials and numbers were recently introduced, which are a degenerate version of Bell polynomials and numbers and are different from the previously introduced partially degenerate Bell polynomials and numbers.
Taekyun Kim   +3 more
doaj   +1 more source

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