On matrices with non-positive off-diagonal elements and positive principal minors
Miroslav Fiedler, Vlastimil Pták (1962)
Czechoslovak Mathematical Journal
Similarity:
Miroslav Fiedler, Vlastimil Pták (1962)
Czechoslovak Mathematical Journal
Similarity:
David Carlson, Thomas L. Markham (1979)
Czechoslovak Mathematical Journal
Similarity: