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Volume 9, Issue 2, April 2020, Page: 37-45
Cohomology Operations andπ-Strongly Homotopy Commutative Hopf Algebra
Calvin Tcheka, Department of Mathematics and Computer Sciences, University of Dschang, Dschang, Cameroon
Received: Oct. 8, 2019;       Accepted: Dec. 4, 2019;       Published: Apr. 23, 2020
DOI: 10.11648/j.pamj.20200902.12      View  330      Downloads  144
Steenrod operations are cohomology operations that are themselves natural transformations between cohomology functors. There are two distinct types of steenrod operations initially constructed by Norman Steenrod and called Steenrod squares and reduced p-th power operations usually denoted Sq and pi respectively. Since their creation, it has been proved that these operations can be constructed in the cohomology of many algebraic structures, for instance in the cohomology of simplicial restricted Lie algebras, the cohomology of cocommutative Hopf algebras and the homology of infinite loop space. Later on J. P. May developped a general algebraic setting in which all the above cases can be studied. In this work we consider a cyclic group π of oder a fixed prime p and combine theπ-strongly homotopy commutative Hopf algebra structure to the May’s approach with the aim to build these natural transformations on the Hochschild cohomology groups. Moreover we give under some conditions a link of these natural transformations with the Gerstenhaber algebra structure.
π-Strongly Homotopy Commutative Hopf Algebra, Cohomology Operations, Gerstenhaber Algebra
To cite this article
Calvin Tcheka, Cohomology Operations andπ-Strongly Homotopy Commutative Hopf Algebra, Pure and Applied Mathematics Journal. Vol. 9, No. 2, 2020, pp. 37-45. doi: 10.11648/j.pamj.20200902.12
Copyright © 2020 Authors retain the copyright of this article.
This article is an open access article distributed under the Creative Commons Attribution License ( which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
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