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

Nguyen, Van; Witherspoon, Sarah

doi:10.2140/ant.2018.12.491

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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

DOI: 10.2140/ant.2018.12.491

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

Vol. 12, No. 2, 2018