2023/01/12 by Merzel, Jon
#22D20 #FOS: Mathematics #Representation Theory (math.RT) #Rings and Algebras (math.RA)
paper · doi:10.48550/arxiv.2301.05053
In this note, we use the isomorphism of the ring of G-circulant matrices over a field k with the group ring k[G] to derive a very short proof of the Classical Maschke Theorem.