• 제목/요약/키워드: stirling numbers

검색결과 56건 처리시간 0.023초

CONCAVITY PROPERTIES FOR CERTAIN LINEAR COMBINATIONS OF STIRLING NUMBERS

  • Kim, Jin B.;Lee, Yong M.
    • Kyungpook Mathematical Journal
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    • 제18권1호
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    • pp.31-36
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    • 1978
  • This paper studies some problems suggested by Stirling numbers, and defines generalized Stirling numbers s(n, k, r), S(n, k, r) and proves that generalized Stirling numbers and certain linear combination of generalized Stirling numbers are strong logarithmic concave functions of k for fixed n and r.

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NOTE ON STIRLING POLYNOMIALS

  • Choi, Junesang
    • 충청수학회지
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    • 제26권3호
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    • pp.591-599
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    • 2013
  • A large number of sequences of polynomials and numbers have arisen in mathematics. Some of them, for example, Bernoulli polynomials and numbers, have been investigated deeply and widely. Here we aim at presenting certain interesting and (potentially) useful identities involving mainly in the second-order Eulerian numbers and Stirling polynomials, which seem to have not been given so much attention.

SIMPLIFYING AND FINDING ORDINARY DIFFERENTIAL EQUATIONS IN TERMS OF THE STIRLING NUMBERS

  • Qi, Feng;Wang, Jing-Lin;Guo, Bai-Ni
    • Korean Journal of Mathematics
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    • 제26권4호
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    • pp.675-681
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    • 2018
  • In the paper, by virtue of techniques in combinatorial analysis, the authors simplify three families of nonlinear ordinary differential equations in terms of the Stirling numbers of the first kind and establish a new family of nonlinear ordinary differential equations in terms of the Stirling numbers of the second kind.

ON q-ANALOGUES OF STIRLING SERIES

  • Son, Jin-Woo;Jang, Douk-Soo
    • 대한수학회논문집
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    • 제14권1호
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    • pp.57-68
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    • 1999
  • In this short note, we construct another form of Stirling`s asymptotic series by new form of Carlitz`s q-Bernoulli numbers.

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NEW IDENTITIES FOR STIRLING NUMBERS VIA RIORDAN ARRAYS

  • Cheon, Gi-Sang;El-Mikkawy Moawwad E.A.;Seol, Han-Guk
    • 한국수학교육학회지시리즈B:순수및응용수학
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    • 제13권4호
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    • pp.311-318
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    • 2006
  • In this paper we establish some new identities involving Stirling numbers of both kinds. These identities are obtained via Riodan arrays with a variable x. Some well-known identities are obtained as special cases of the new identities for the specific number x.

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CERTAIN FORMULAS INVOLVING EULERIAN NUMBERS

  • Choi, Junesang
    • 호남수학학술지
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    • 제35권3호
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    • pp.373-379
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    • 2013
  • In contrast with numerous identities involving the binomial coefficients and the Stirling numbers of the first and second kinds, a few identities involving the Eulerian numbers have been known. The objective of this note is to present certain interesting and (presumably) new identities involving the Eulerian numbers by mainly making use of Worpitzky's identity.

SOME PROPERTIES OF GENERALIZED q-POLY-EULER NUMBERS AND POLYNOMIALS WITH VARIABLE a

  • KIM, A HYUN
    • Journal of applied mathematics & informatics
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    • 제38권1_2호
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    • pp.133-144
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    • 2020
  • In this paper, we discuss generalized q-poly-Euler numbers and polynomials. To do so, we define generalized q-poly-Euler polynomials with variable a and investigate its identities. We also represent generalized q-poly-Euler polynomials E(k)n,q(x; a) using Stirling numbers of the second kind. So we explore the relation between generalized q-poly-Euler polynomials and Stirling numbers of the second kind through it. At the end, we provide symmetric properties related to generalized q-poly-Euler polynomials using alternating power sum.