Titlebook: Algebra and Galois Theories; Régine Douady,Adrien Douady Textbook 2020 Springer Nature Switzerland AG 2020 Galois Theory.Coverings, fundam

Pepsin

d the theory of covering spaces and highlights this similari.Galois theory has such close analogies with the theory of coverings that algebraists use a geometric language to speak of field extensions, while topologists speak of "Galois coverings". This book endeavors to develop these theories in a p

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致敬

David B. Zilberman,A. M. Piatigorskymma and Zermelo’s theorem. Both play more or less the same role, and either can usually be chosen. In our opinion, Zorn’s lemma is more powerful, while Zermelo’s theorem sometimes casts a more significant light.

爆米花

https://doi.org/10.1007/978-3-030-45537-8 . of compact connected Riemann surfaces over ., and respectively, the opposite category of the category of finite extensions of ., and the direct limit category of categories of connected covers of ., where . is finite.

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. The intention is to allow to transfer to the algebraic framework of Galois theory the geometric intuition that one can have in the context of coverings.. This book is aimed at graduate students and mathematicians curious about a non-exclusively algebraic view of Galois theory..978-3-030-32798-9978-3-030-32796-5

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Membrane Theory for Thin Shells of Arbitrary Curvaturespal curvatures. In practice it may be useful to choose the co-ordinate system in such a way that a co-ordinate axis is placed along an edge of the shell, which does not necessarily coincide with a principal curvature. This is the subject of this chapter. Different from the approach of Chap. 2, we no

Astigmatism

Reagan’s Political Heir President Bush leaned on the grand coalition Reagan formed nearly twenty-five years ago. Back in 1979, the Reagan coalition was emerging as a powerful and potent force. Signs of its birth were already apparent in the 1978 midterm elections when Republicans added sixteen seats in the House and three