Matrices for whichA∗andA†commute
Robert E. Hartwig, Klaus Spindelböck · Linear and Multilinear Algebra · 1983
The class of complex star-dagger matrices for which A∗ and A† commute, is investigated. Some fundamental properties are given and a canonical form is derived. The interaction of this class of matrices with other common classes of special matrices, which as group matrices, EP matrices, and idempotents, will be looked into