Eigenvalues of sums of Hermitian matrices .III.
Robert C. Thompson, Linda Freede Garbanati · Journal of Research of the National Bureau of Standards Section B Mathematical Sciences · 1971
Two classes of nonun ear in equalities for the eige nvalu es of sums of Hermiti a n matrices a re obtained.Th ese nonlinea r ineq ua liti es are shown to follow from lin ear ineq ualit ies es tablished in parts I a nd II of thi s series.A ne w in equalit y for th e singular values of matrix products is a lso obtained.