# Changes

Consider the matrix with rows indexed by indecomposable representations, columns indexed by conjugacy classes, and the entry in row $\rho$ and column $c$ is $\chi(c,\rho)$. In other words, the matrix is the [[character table]]. The automorphism group acts on the rows and on the columns in a way that the entries are not affected. {{further|[[Conjugacy class-representation duality]]}}