%0 Journal Article %A Dash, A. T. %T Positive Definite Sequence of Operators and a Fixed Point Theorem %J Canadian mathematical bulletin %D 1972 %P 295-295 %V 15 %N 2 %U http://geodesic.mathdoc.fr/articles/10.4153/CMB-1972-054-3/ %R 10.4153/CMB-1972-054-3 %F 10_4153_CMB_1972_054_3