神刊
发表于 2025-3-23 12:21:07
,Ramanujan’s Theory of Divergent Series,dare to base any proof on them.” This admonition would have been vehemently debated by Ramanujan. Much like Euler, Ramanujan employed divergent series in a variety of ways to establish a diversity of results, most of them valid but a few not so. Divergent series are copious throughout Ramanujan’s no
intuition
发表于 2025-3-23 14:15:59
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In-Situ
发表于 2025-3-23 19:35:50
Analogues of the Gamma Function,series and the logarithmic derivative ψ(.) of the gamma function. As might be expected, most of these results are very familiar. Ramanujan actually does not express his formulas in terms of ψ(.) but instead in terms of .. As in Chapter 6, Ramanujan really intends ϕ(.) to be interpreted as ϕ(. + 1) +
defray
发表于 2025-3-24 01:11:28
Infinite Series Identities, Transformations, and Evaluations,nite series, and so forth, that was most amazing.” This chapter has 35 sections containing 139 formulas of which many are, indeed, very beautiful and elegant. Ramanujan gives several transformations of power series leading to many striking series relations and attractive series evaluations. Most of
数量
发表于 2025-3-24 06:16:33
Iterates of the Exponential Function and an Ingenious Formal Technique,taken by Bell in 1938. Becker and Riordan and Carlitz have established arithmetical properties for these generalizations of Bell numbers. Also, Ginsburg has briefly considered such iterates. For a combinatorial interpretation of numbers generated by iterated exponential functions, see Stanley’s article .
jeopardize
发表于 2025-3-24 10:17:35
,Ramanujan’s Theory of Divergent Series,ing identities that involve one or more divergent series, one might be led to believe that Ramanujan probably made no distinction between convergent and divergent series. However, the occasional discourse in Chapter 6 is firm evidence that Ramanujan made such a distinction.
图画文字
发表于 2025-3-24 13:19:15
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祝贺
发表于 2025-3-24 18:52:04
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ALOFT
发表于 2025-3-24 22:43:15
Analogues of the Gamma Function, γ, ., where γ denotes Euler’s constant. These 14 sections also contain several evaluations of elementary integrals of rational functions. Certain of these integrals are connected with an interesting series ., which Ramanujan also examined in Chapter 2.
有权
发表于 2025-3-24 23:58:52
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