Czechoslovak Mathematical Journal, first online, pp. 1-4
Summands of finite group algebras
Carsten Dietzel, Gaurav Mittal
Received May 1, 2020. Published online December 14, 2020.
Abstract: We study the inverse problem of the determination of a group algebra from the knowledge of its Wedderburn decomposition. We show that a certain class of matrix rings always occur as summands of finite group algebras.
Affiliations: Carsten Dietzel, Institute of Algebra and Number Theory, University of Stuttgart, Pfaffenwaldring 57, 70569 Stuttgart, Germany, e-mail: email@example.com; Gaurav Mittal (corresponding author), Department of Mathematics, Indian Institute of Technology Roorkee, Roorkee, Uttarakhand 247667, India, e-mail: firstname.lastname@example.org