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Titlebook: Cohomology Rings of Finite Groups; With an Appendix: Ca Jon F. Carlson,Lisa Townsley,Mucheng Zhang Book 2003 Springer Science+Business Medi

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发表于 2025-3-21 18:59:14 | 显示全部楼层 |阅读模式
书目名称Cohomology Rings of Finite Groups
副标题With an Appendix: Ca
编辑Jon F. Carlson,Lisa Townsley,Mucheng Zhang
视频video
丛书名称Algebra and Applications
图书封面Titlebook: Cohomology Rings of Finite Groups; With an Appendix: Ca Jon F. Carlson,Lisa Townsley,Mucheng Zhang Book 2003 Springer Science+Business Medi
描述Group cohomology has a rich history that goes back a century or more. Its origins are rooted in investigations of group theory and num­ ber theory, and it grew into an integral component of algebraic topology. In the last thirty years, group cohomology has developed a powerful con­ nection with finite group representations. Unlike the early applications which were primarily concerned with cohomology in low degrees, the in­ teractions with representation theory involve cohomology rings and the geometry of spectra over these rings. It is this connection to represen­ tation theory that we take as our primary motivation for this book. The book consists of two separate pieces. Chronologically, the first part was the computer calculations of the mod-2 cohomology rings of the groups whose orders divide 64. The ideas and the programs for the calculations were developed over the last 10 years. Several new features were added over the course of that time. We had originally planned to include only a brief introduction to the calculations. However, we were persuaded to produce a more substantial text that would include in greater detail the concepts that are the subject of the calculations and
出版日期Book 2003
关键词Abelian group; Algebra; Cohomology; Computer; Homological algebra; Representation theory; complexity; compu
版次1
doihttps://doi.org/10.1007/978-94-017-0215-7
isbn_softcover978-90-481-6385-4
isbn_ebook978-94-017-0215-7Series ISSN 1572-5553 Series E-ISSN 2192-2950
issn_series 1572-5553
copyrightSpringer Science+Business Media Dordrecht 2003
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Spectral Sequences,count of spectral sequences. Perhaps with some imagination the reader can guess how the pages of a spectral sequence of a filtered complex might unfold. We consider only first quadrant cohomology spectral sequences. Homology spectral sequences are similar in reasonably obvious ways. The spectral seq
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Cohomology Rings of Modules, ring H* (., .) via the isomorphism ., and the fact that Hom.(., .) is a finitely generated .-module. For this reason there exists a cohomological support variety ..(.) of the module . which is a subvariety of ..(.) and which reflects many of the homological properties of the module.
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Complexity and Multiple Complexes,he late 1970’s and it helped to motivate much of the development of the homological properties of modules. In fact, the complexity of a finitely generated .module . is a rather crude invariant, in that it only measures the polynomial rate of growth of a minimal projective resolution of the module. T
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Duality Complexes,es of a system of homogeneous parameters for the cohomology ring H* (.). Spectral sequences arise from truncated versions of the periodic complexes. In this chapter, we use the constructions to show that for any .-module ., the cohomology H.(.) can not equal zero for too many consecutive values of .
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Transfers, Depth and Detection,ntinue to explore the properties of cohomology rings and the ensuing relationship to group structure. A principal focus is the detection of cohomology by subgroups of the given group. We would like to know if there is a collection of subgroups of a group such that kernels of the restriction maps to
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Subgroup Complexes,group . of .. If . is not a .-group, extracting the cohomology of . as a subring of the cohomology ring of . is often a matter of finding the invariant elements. This reduces to an application of some sort of invariant theory. There must be some way of determining the action of the group on its .-su
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