Rump, Siegfried M.Siegfried M.Rump2021-02-102021-02-102002-01-10Linear Algebra and Its Applications (363): 237-250 (2003-04-01)http://hdl.handle.net/11420/8726We present some necessary and sufficient conditions for a real matrix to be a P-matrix. They are based on the sign-real spectral radius and regularity of a certain interval matrix. We show that no minor can be left out when checking for P-property. Furthermore, a not necessarily exponential method for checking the P-property is given.en0024-37952002237250American Elsevier Publ.P-matrixP-problemSign-real spectral radiusInformatikMathematikJournal Article10.1016/S0024-3795(01)00590-0Other