Commutative Algebra: 150 Years With Roger and Sylvia Wiegand (Contemporary Mathematics, 773)

Cover
Title page
Contents
Two conferences
The life and times of Roger and Sylvia Wiegand
The mathematics of Sylvia and Roger Wiegand
Bibliography
On an example concerning the second rigidity theorem
	1. Introduction
	2. Preliminaries
	3. Main theorem
	4. Proof of Theorem 1.2 and further remarks
	Acknowledgments
	References
Dimension of finite free complexes over commutative Noetherian rings
	Introduction
	Dimension
	References
Examples of multiplicities and mixed multiplicities of filtrations
	1. Introduction
	2. Anti-positive intersection products
	3. Intersection theory on projective varieties
	4. An example
	References
Tate resolutions and MCM approximations
	Introduction
	1. Duality in the Tate resolution of a Cohen-Macaulay module
	2. The case of two regular sequences
	References
The Étale locus in complete local rings
	Acknowledgments
	References
Extensions of primes, flatness, and intersection flatness
	1. Introduction
	2. Basic properties
	3. Flatness
	4. A counterexample when a quasilocal ring has infinitely many minimal primes
	5. Intersection flatness
	Acknowledgments
	References