%0 Journal Article %A Friedland, Shmuel %T The Collatz-Wielandt quotient for pairs of nonnegative operators %J Applications of Mathematics %D 2020 %P 557-597 %V 65 %N 5 %I mathdoc %U http://geodesic.mathdoc.fr/articles/10.21136/AM.2020.0260-19/ %R 10.21136/AM.2020.0260-19 %G en %F 10_21136_AM_2020_0260_19