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Bulletin of the London Mathematical Society
Article . 1980 . Peer-reviewed
License: Wiley Online Library User Agreement
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image/svg+xml Jakob Voss, based on art designer at PLoS, modified by Wikipedia users Nina and Beao Closed Access logo, derived from PLoS Open Access logo. This version with transparent background. http://commons.wikimedia.org/wiki/File:Closed_Access_logo_transparent.svg Jakob Voss, based on art designer at PLoS, modified by Wikipedia users Nina and Beao
zbMATH Open
Article . 1980
Data sources: zbMATH Open
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Remarks on Analytic Continuation

Remarks on analytic continuation
Authors: Haimo, F.; Singer, M. F.; Tretkoff, M.;

Remarks on Analytic Continuation

Abstract

The collection Jt of multi-valued analytic functions with three singular points z = a, b,c on the Riemann sphere ..., wn) ^ 0 with complex coefficients which vanishes identically when w0 is replaced by w(z) and the Wj are replaced by d w/dz. According to a theorem of Holder, the gamma function has this property, but T(z) is single-valued and has poles at the negative integers. Our result is obtained by supplementing the reasoning employed in [4] with that of Ritt and Gourin [3]. Moreover, replacing the Golod-Shafarevitch group utilized in [4] by interesting two-generator groups permits us to restrict our attention to the collection of functions with three singular points and to make a few additional observations about the branching behaviour of some of its members. Finally, we prove a theorem about the symmetric group on a countable set which yields yet another interesting function in our class Ji. Throughout this paper we replace the phrase "homogeneous linear differential equation with single-valued analytic coefficients with singularities at z = ah i = 1, . . . ,r + l, r a positive integer", by the term "linear differential equation". Now, suppose that G is an infinite group generated by r elements; of course, G is countable. Selecting r + 1 arbitrary points z = aif i = l , . . . , r + l on

Keywords

transcendentally transcendental, Mittag-Leffler Anschmiegungssatz, Symmetric groups, Riemann surface, infinite cycles, Analytic continuation of functions of one complex variable, monodromy group

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selected citations
These citations are derived from selected sources.
This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Citations provided by BIP!
popularity
This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
BIP!Popularity provided by BIP!
influence
This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Influence provided by BIP!
impulse
This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
BIP!Impulse provided by BIP!
1
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