Valuations and Differential Galois Groups

Valuations and Differential Galois Groups
Author :
Publisher : American Mathematical Soc.
Total Pages : 82
Release :
ISBN-10 : 9780821849064
ISBN-13 : 0821849069
Rating : 4/5 (069 Downloads)

Book Synopsis Valuations and Differential Galois Groups by : Guillaume Duval

Download or read book Valuations and Differential Galois Groups written by Guillaume Duval and published by American Mathematical Soc.. This book was released on 2011 with total page 82 pages. Available in PDF, EPUB and Kindle. Book excerpt: In this paper, valuation theory is used to analyse infinitesimal behaviour of solutions of linear differential equations. For any Picard-Vessiot extension $(F / K, \partial)$ with differential Galois group $G$, the author looks at the valuations of $F$ which are left invariant by $G$. The main reason for this is the following: If a given invariant valuation $\nu$ measures infinitesimal behaviour of functions belonging to $F$, then two conjugate elements of $F$ will share the same infinitesimal behaviour with respect to $\nu$. This memoir is divided into seven sections.


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