Block P-matrices
L. Elsner, Tomasz Szulc · Linear and Multilinear Algebra · 1998
Several possibilities to generalize P-matrices to block form are discussed. Unfortunately certain equivalences holding for P-matrices do not carry over to the block case. We opt for one such generalization calling it block P-matrices. It has the most analogies to the usual P-matrices. This class and its connections to other generalizations is studied in some detail.