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

To celebrate the cumulative ages of Roger and Sylvia Wiegand, both fixtures in the commutative algebra community, one conference was held in Sao Paulo, Brazil during July 2019 and another in Madison, Wisconsin during September 2019. The combined proceedings contains 16 papers on such topics as examples of multiplicities and mixed multiplicities of filtrations, the Etale locus in complete local rings, magic squares of squares over a finite field, a generalization of coefficient ideals, and an upper bound for the first Hilbert coefficient of Gorenstein algebras and modules. Annotation 2021 Ringgold, Inc., Portland, OR (protoview.com)