Vol. 12, No. 2, 2018

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Correction to the article Finite generation of the cohomology of some skew group algebras

Van C. Nguyen and Sarah Witherspoon

Vol. 12 (2018), No. 2, 491–492

Correction to Algebra & Number Theory 8:7 (2014) 1647–1657

Abstract

For the class of examples in Section 5 of the article in question, the proof of finite generation of cohomology is incomplete. We give here a proof of existence of a polynomial subalgebra needed there. The rest of the proof of finite generation given by the authors then applies.

Keywords
cohomology, Hopf algebras, skew group algebras
Mathematical Subject Classification 2010
Primary: 16E40
Secondary: 16T05
Milestones
Received: 27 October 2017
Accepted: 15 February 2018
Published: 13 May 2018
Authors
Van C. Nguyen
Department of Mathematics
Hood College
Frederick, MD
United States
Sarah Witherspoon
Department of Mathematics
Texas A&M University
College Station, TX
United States