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Title: Automorphisms and symbols in K(,2)
Author(s): Holdener, Judy Ann
Doctoral Committee Chair(s): Evans, Graham
Department / Program: Mathematics
Discipline: Mathematics
Degree Granting Institution: University of Illinois at Urbana-Champaign
Degree: Ph.D.
Genre: Dissertation
Subject(s): Mathematics
Abstract: Much of the work in algebraic K-theory today is devoted to the search for "motivic cohomology." This hoped-for cohomology theory of algebraic geometry should be analogous to the known singular homology groups of topology. In this work we consider Goodwillie and Lichtenbaum's candidate for motivic cohomology. For R a regular ring, they define a "weight" filtration on the K-theory space K(R),$$K(R) = W\sp0 \gets W\sp1 \gets W\sp2 \gets \cdots,$$and then define the cohomology groups to be$$H\sp{m}(X,\doubz (t)) = \pi\sb{2t-m}(W\sp{t}/W\sp{t+1}).$$If what they propose is correct, then one would expect $\pi\sb{t}(W\sp{t}/W\sp{t+l})$ to be the weight t part of K(R). Here we present Goodwillie's proof that this is indeed the case when t = 2 and R is an algebraically closed field. We then continue his work by showing that $\pi\sb2(W\sp2/W\sp3)$ $\cong$ K$\sb2(R)$ for other fields, namely, we handle the cases, R = $\IR$, and R = $\doubc((T)).$ Our arguments also work when R is a finite field.
Issue Date: 1994
Type: Text
Language: English
Rights Information: Copyright 1994 Holdener, Judy Ann
Date Available in IDEALS: 2011-05-07
Identifier in Online Catalog: AAI9512397
OCLC Identifier: (UMI)AAI9512397

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