Journal of Applied Mathematics and Stochastic Analysis 
Volume 8 (1995), Issue 3, Pages 319-329
doi:10.1155/S1048953395000281

Extreme solutions of nonlinear, second order integro-differential equations in Banach spaces

Dajun Guo

Shandong University, Department of Mathematics, Jinan 250100, China

Received 1 July 1994; Revised 1 February 1995

Abstract

After establishing a comparison result by means of a new method, we obtain the existence of maximal and minimal solutions for nonlinear, second order integro-differential equations of mixed type in Banach spaces.