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Multiple fixed points of a sum operator and applications. (English) Zbl 1173.47038
Author’s abstract: This paper considers existence of multiple positive fixed points for some nonlinear operators, a particular case of the operators is sum of an e-concave operator and an e-convex operator. Then we apply the results to nonlinear integral equations.
MSC:
47H10Fixed point theorems for nonlinear operators on topological linear spaces
47H09Mappings defined by “shrinking” properties
47N20Applications of operator theory to differential and integral equations
45G10Nonsingular nonlinear integral equations