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Date: 25-3-2019
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Date: 16-4-2019
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Clausen's identity
(1) |
holds for , , , where a nonpositive integer and is the Pochhammer symbol (Petkovšek et al. 1996). Closely related identities include
(2) |
and
(3) |
(Bailey 1935; Slater 1966, p. 245; Andrews and Burge 1993).
Another identity ascribed to Clausen which involves the hypergeometric function and the generalized hypergeometric function is given by
(4) |
(Clausen 1828; Bailey 1935, p. 86; Hardy 1999, p. 106).
REFERENCES:
Andrews, G. E. and Burge, W. H. "Determinant Identities." Pacific J. Math. 158, 1-14, 1993.
Bailey, W. N. Generalised Hypergeometric Series. Cambridge, England: Cambridge University Press, 1935.
Clausen, T. "Ueber die Falle wenn die Reihe ein quadrat von der Form hat." J. für Math. 3, 89-95, 1828.
Hardy, G. H. Ramanujan: Twelve Lectures on Subjects Suggested by His Life and Work, 3rd ed. New York: Chelsea, 1999.
Petkovšek, M.; Wilf, H. S.; and Zeilberger, D. A=B. Wellesley, MA: A K Peters, pp. 43 and 127, 1996.
Slater, L. J. Generalized Hypergeometric Functions. Cambridge, England: Cambridge University Press, 1966.
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