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Adams operations, localized Chern characters, and the positivity of Dutta multiplicity in characteristic $0$

Authors: Kazuhiko Kurano and Paul C. Roberts
Journal: Trans. Amer. Math. Soc. 352 (2000), 3103-3116
MSC (1991): Primary 13A35, 13D15; Secondary 14C17, 14C35
Published electronically: February 25, 2000
MathSciNet review: 1707198
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Abstract | References | Similar Articles | Additional Information


The positivity of the Dutta multiplicity of a perfect complex of $A$-modules of length equal to the dimension of $A$ and with homology of finite length is proven for homomorphic images of regular local rings containing a field of characteristic zero. The proof uses relations between localized Chern characters and Adams operations.

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Additional Information

Kazuhiko Kurano
Affiliation: Department of Mathematics, Tokyo Metropolitan University, Minami-Ohsawa 1-1, Hachioji, Tokyo 192-0397, Japan

Paul C. Roberts
Affiliation: Department of Mathematics, University of Utah, Salt Lake City, Utah 84112

Received by editor(s): April 10, 1998
Published electronically: February 25, 2000
Additional Notes: The first author would like to thank the University of Utah for its invitation during 1997-1998.
Both authors were supported in part through a grant from the National Science Foundation.
Article copyright: © Copyright 2000 American Mathematical Society