• 제목/요약/키워드: duplication formula for the Gamma function

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A PROOF OF THE LEGENDRE DUPLICATION FORMULA FOR THE GAMMA FUNCTION

  • Park, In-Hyok;Seo, Tae-Young
    • East Asian mathematical journal
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    • 제14권2호
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    • pp.321-327
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    • 1998
  • There have been various proofs of the Legendre duplication formula for the Gamma function. Another proof of the formula is given here and a brief history of the Gamma function is also provided.

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A duplication formula for the double gamma function $Gamma_2$

  • Park, Junesang
    • 대한수학회보
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    • 제33권2호
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    • pp.289-294
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    • 1996
  • The double Gamma function had been defined and studied by Barnes [4], [5], [6] and others in about 1900, not appearing in the tables of the most well-known special functions, cited in the exercise by Whittaker and Waston [25, pp. 264]. Recently this function has been revived according to the study of determinants of Laplacians [8], [11], [15], [16], [19], [20], [22] and [24]. Shintani [21] also uses this function to prove the classical Kronecker limit formula. Its p-adic analytic extension appeared in a formula of Casson Nogues [7] for the p-adic L-functions at the point 0.

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OTHER PROOFS OF KUMMER'S SECOND THEOREM

  • Malani, Shaloo;Choi, June-Sang
    • East Asian mathematical journal
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    • 제17권1호
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    • pp.129-133
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    • 2001
  • The aim of this research note is to derive the well known Kummer's second theorem by transforming the integrals which represent some generalized hypergeometric functions. This theorem can also be shown by combining two known Bailey's and Preece's identities for the product of generalized hypergeometric series.

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GAUSS SUMMATION THEOREM AND ITS APPLICATIONS

  • Lee, Hyung-Jae;Cho, Young-Joon;Choi, June-Sang
    • East Asian mathematical journal
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    • 제17권1호
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    • pp.147-158
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    • 2001
  • The Gauss summation theorem plays a key role in the theory of(generalized) hypergeometric series. The authors study several proofs of the theorem and consider some applications of it.

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NOTE ON THE CLASSICAL WATSON'S THEOREM FOR THE SERIES 3F2

  • Choi, Junesang;Agarwal, P.
    • 호남수학학술지
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    • 제35권4호
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    • pp.701-706
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    • 2013
  • Summation theorems for hypergeometric series $_2F_1$ and generalized hypergeometric series $_pF_q$ play important roles in themselves and their diverse applications. Some summation theorems for $_2F_1$ and $_pF_q$ have been established in several or many ways. Here we give a proof of Watson's classical summation theorem for the series $_3F_2$(1) by following the same lines used by Rakha [7] except for the last step in which we applied an integral formula introduced by Choi et al. [3].