Group rings and class groups
著者
書誌事項
Group rings and class groups
（DMV seminar, Bd. 18）
Birkhäuser, 1992
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- : us
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注記
Includes bibliographical references (p. 144-149; p. 209-210) and index
内容説明・目次
内容説明
These notes form an extended version of talks given at the DMV-seminar in Giinzburg, September 1990. The seminar consisted of two parts: 1) "The isomorphism problem for integral group rings", with the main talks given by K. W. Roggenkamp and shorter contributions by W.Kimmerle, J.llitter and A. Zimmermann (Part 1). 2) "Galois-Module structure", with the main talks given by M.Taylor and shorter contributions by N.Byott (Part 2). We greatly appreciate the opportunity, given us by the DMV to hold this seminar. DMV-Seminar Part 1 Group Rings: Units and the Isomorphism Problem K. W. Roggenkamp with contributions by W. Kimmerle and A. Zimmermann Contents 3 Table of Contents I Some general facts ...7 1 Ring reduction to PID . 7 2 Modules ...7 II Some notes on representation theory 9 1 Blocks ...9 2 Normalizers of p-Sylow subgroups of group bases 11 3 Cohomology rings 12 Profinite groups ...13 4 III The leading coefficient of units 15 IV Class sum correspondence ...21 .
目次
I Some general facts.- II Some notes on representation theory.- III The leading coefficient of units.- IV Class sum correspondence.- V More on the class sum correspondence.- VI Subgroup rigidity.- VII Global units.- VIII Locally isomorphic group rings.- IX Zassenhaus conjecture.- X Variations of the Zassenhaus conjecture.- XI Group Extensions.- XII Class sums of p-elements.- XIII Clifford theory revisited.- XIV Examples.- I Introduction and Review of the Tame Case.- II Hopf Orders.- III Principal Hornogeneous Spaces.- IV Arithmetic Applications:- The Cyclotomic Case.- V Arithmetic Applications:- The Elliptic Case.- References.
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