Geometry In A Fr Chet Context
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Beyond Hyperbolicity
Author: Mark Hagen
language: en
Publisher: Cambridge University Press
Release Date: 2019-07-11
Contains expository articles and research papers in geometric group theory focusing on generalisations of Gromov hyperbolicity.
Optimization by Vector Space Methods
Author: David G. Luenberger
language: en
Publisher: John Wiley & Sons
Release Date: 1997-01-23
Engineers must make decisions regarding the distribution of expensive resources in a manner that will be economically beneficial. This problem can be realistically formulated and logically analyzed with optimization theory. This book shows engineers how to use optimization theory to solve complex problems. Unifies the large field of optimization with a few geometric principles. Covers functional analysis with a minimum of mathematics. Contains problems that relate to the applications in the book.
Relative P-adic Hodge Theory
The authors describe a new approach to relative $p$-adic Hodge theory based on systematic use of Witt vector constructions and nonarchimedean analytic geometry in the style of both Berkovich and Huber. They give a thorough development of $\varphi$-modules over a relative Robba ring associated to a perfect Banach ring of characteristic $p$, including the relationship between these objects and etale ${\mathbb Z}_p$-local systems and ${\mathbb Q}_p$-local systems on the algebraic and analytic spaces associated to the base ring, and the relationship between (pro-)etale cohomology and $\varphi$-cohomology. They also make a critical link to mixed characteristic by exhibiting an equivalence of tensor categories between the finite etale algebras over an arbitrary perfect Banach algebra over a nontrivially normed complete field of characteristic $p$ and the finite etale algebras over a corresponding Banach ${\mathbb Q}_p$-algebra. This recovers the homeomorphism between the absolute Galois groups of ${\mathbb F}_{p}((\pi))$ and ${\mathbb Q}_{p}(\mu_{p}\infty)$ given by the field of norms construction of Fontaine and Wintenberger, as well as generalizations considered by Andreatta, Brinon, Faltings, Gabber, Ramero, Scholl, and, most recently, Scholze. Using Huber's formalism of adic spaces and Scholze's formalism of perfectoid spaces, the authors globalize the constructions to give several descriptions of the etale local systems on analytic spaces over $p$-adic fields. One of these descriptions uses a relative version of the Fargues-Fontaine curve.