Annals of Mathematics, Second Series, Vol. 176, No. 3 (November, 2012), pp. 1783-1826 (44 pages) We prove generalizations of Löwner's results on matrix monotone functions to several variables. We give ...
Science Reports of the Tokyo Kyoiku Daigaku, Section A, Vol. 8, No. 196/201 (March 25, 1965), pp. 251-258 (8 pages) ...