An observation on Kannan mappings
MR0743037 (87h:90061a) Yannelis, Nicholas C.; Prabhakar, N. D. "Existence of maximal elements and equilibria in linear topological spaces". J. Math. Econom. 12 (1983), no. 3, 233--245. (Reviewer: Carmen Pagliari) 90A14 (54C65 54H25)
MR0777125 (87h:90061b) Yannelis, Nicholas C.; Prabhakar, N. D. Erratum "Existence of maximal elements and equilibria in linear topological spaces". J. Math. Econom. 13 (1984), no. 3, 305. (Reviewer: Carmen Pagliari) 90A14 (54C65 54H25)