Two identities and closed-form formulas for the Bernoulli numbers in terms of central factorial numbers of the second kind

In this article, the authors present two identities involving products of the Bernoulli numbers, provide four alternative proofs for these two identities, derive two closed-form formulas for the Bernoulli numbers in terms of central factorial numbers of the second kind, and supply simple proofs of s...

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Main Authors: Chen Xue-Yan, Wu Lan, Lim Dongkyu, Qi Feng
Format: Article
Language:English
Published: De Gruyter 2022-11-01
Series:Demonstratio Mathematica
Subjects:
Online Access:https://doi.org/10.1515/dema-2022-0166
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author Chen Xue-Yan
Wu Lan
Lim Dongkyu
Qi Feng
author_facet Chen Xue-Yan
Wu Lan
Lim Dongkyu
Qi Feng
author_sort Chen Xue-Yan
collection DOAJ
description In this article, the authors present two identities involving products of the Bernoulli numbers, provide four alternative proofs for these two identities, derive two closed-form formulas for the Bernoulli numbers in terms of central factorial numbers of the second kind, and supply simple proofs of series expansions of (hyperbolic) cosecant and cotangent functions.
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spelling doaj.art-1eaf334989764ace9a9c3c4d9b184d522022-12-22T02:46:05ZengDe GruyterDemonstratio Mathematica2391-46612022-11-0155182283010.1515/dema-2022-0166Two identities and closed-form formulas for the Bernoulli numbers in terms of central factorial numbers of the second kindChen Xue-Yan0Wu Lan1Lim Dongkyu2Qi Feng3College of Engineering, Key Laboratory of Intelligent Manufacturing Technology, Inner Mongolia Minzu University, Tongliao 028000, Inner Mongolia, ChinaCollege of Engineering, Inner Mongolia Minzu University, Tongliao 028000, Inner Mongolia, ChinaDepartment of Mathematics Education, Andong National University, Andong 36729, Republic of KoreaInstitute of Mathematics, Henan Polytechnic University, Jiaozuo 454003, ChinaIn this article, the authors present two identities involving products of the Bernoulli numbers, provide four alternative proofs for these two identities, derive two closed-form formulas for the Bernoulli numbers in terms of central factorial numbers of the second kind, and supply simple proofs of series expansions of (hyperbolic) cosecant and cotangent functions.https://doi.org/10.1515/dema-2022-0166bernoulli numberidentityproductcosecantcotangenthyperbolic cosecanthyperbolic cotangentseries expansioncentral factorial number of the second kindclosed-form formulaprimary 11b68secondary 11b7333b10
spellingShingle Chen Xue-Yan
Wu Lan
Lim Dongkyu
Qi Feng
Two identities and closed-form formulas for the Bernoulli numbers in terms of central factorial numbers of the second kind
Demonstratio Mathematica
bernoulli number
identity
product
cosecant
cotangent
hyperbolic cosecant
hyperbolic cotangent
series expansion
central factorial number of the second kind
closed-form formula
primary 11b68
secondary 11b73
33b10
title Two identities and closed-form formulas for the Bernoulli numbers in terms of central factorial numbers of the second kind
title_full Two identities and closed-form formulas for the Bernoulli numbers in terms of central factorial numbers of the second kind
title_fullStr Two identities and closed-form formulas for the Bernoulli numbers in terms of central factorial numbers of the second kind
title_full_unstemmed Two identities and closed-form formulas for the Bernoulli numbers in terms of central factorial numbers of the second kind
title_short Two identities and closed-form formulas for the Bernoulli numbers in terms of central factorial numbers of the second kind
title_sort two identities and closed form formulas for the bernoulli numbers in terms of central factorial numbers of the second kind
topic bernoulli number
identity
product
cosecant
cotangent
hyperbolic cosecant
hyperbolic cotangent
series expansion
central factorial number of the second kind
closed-form formula
primary 11b68
secondary 11b73
33b10
url https://doi.org/10.1515/dema-2022-0166
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