Tag: Cohomology

Lectures on Algebraic Geometry I Sheaves, Cohomology of Sheaves, and Applications to Riemann Surfaces


Free Download Lectures on Algebraic Geometry I: Sheaves, Cohomology of Sheaves, and Applications to Riemann Surfaces By Prof. Dr. Günter Harder (auth.)
2012 | 301 Pages | ISBN: 3834818445 | PDF | 3 MB
This book and the following second volume is an introduction into modern algebraic geometry. In the first volume the methods of homological algebra, theory of sheaves, and sheaf cohomology are developed. These methods are indispensable for modern algebraic geometry, but they are also fundamental for other branches of mathematics and of great interest in their own. In the last chapter of volume I these concepts are applied to the theory of compact Riemann surfaces. In this chapter the author makes clear how influential the ideas of Abel, Riemann and Jacobi were and that many of the modern methods have been anticipated by them.

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Introduction to Étale Cohomology


Free Download Introduction to Étale Cohomology by Güter Tamme
English | PDF | 1994 | 192 Pages | ISBN : 3540571167 | 17.7 MB
Étale Cohomology is one of the most important methods in modern Algebraic Geometry and Number Theory. It has, in the last decades, brought fundamental new insights in arithmetic and algebraic geometric problems with many applications and many important results. The book gives a short and easy introduction into the world of Abelian Categories, Derived Functors, Grothendieck Topologies, Sheaves, General Étale Cohomology, and Étale Cohomology of Curves.

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Multicurves and equivariant cohomology


Free Download Multicurves and equivariant cohomology By N. P. Strickland
2011 | 130 Pages | ISBN: 0821849018 | PDF | 1 MB
Let $A$ be a finite abelian group. The author sets up an algebraic framework for studying $A$-equivariant complex-orientable cohomology theories in terms of a suitable kind of equivariant formal group. He computes the equivariant cohomology of many spaces in these terms, including projective bundles (and associated Gysin maps), Thom spaces, and infinite Grassmannians

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Homotopy Theoretic Methods in Group Cohomology


Free Download Hans-Werner Henn, "Homotopy Theoretic Methods in Group Cohomology"
English | 2001 | ISBN: 0817666052, 3764366052 | PDF | pages: 107 | 6.2 mb
This book looks at group cohomology with tools that come from homotopy theory. These tools give both decomposition theorems (which rely on homotopy colimits to obtain a description of the cohomology of a group in terms of the cohomology of suitable subgroups) and global structure theorems (which exploit the action of the ring of topological cohomology operations).

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