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Nonlinear Volterra integral equations in Henstock integrability setting. (English) Zbl 1169.45300
Summary: We prove the existence of global solutions for nonlinear Volterra-type integral equations involving the Henstock integral in Banach spaces. The functions governing the equation are supposed to be continuous only with respect to some variables and to satisfy some integrability or boundedness conditions. Our result improves the similar one given by L. Liu, F. Gei, C. Wu, Y. Wu [J. Math. Anal. Appl. 309, No. 2, 638–649 (2005; Zbl 1080.45005)] (where uniform continuity was required), as well as those referred therein. Then a related existence result is deduced in the set-valued case.

45D05 Volterra integral equations
26A39 Denjoy and Perron integrals, other special integrals
47H10 Fixed-point theorems
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