Xz. Liu et Dj. Guo, PERIODIC BOUNDARY-VALUE-PROBLEMS FOR A CLASS OF 2ND-ORDER IMPULSIVE INTEGRODIFFERENTIAL EQUATIONS IN BANACH-SPACES, Journal of mathematical analysis and applications, 216(1), 1997, pp. 284-302
This paper investigates periodic boundary value problems for a class o
f second-order nonlinear impulsive integro-differential equations of m
ixed type in a Banach space. By establishing a comparison result, crit
eria on the existence of maximal and minimal solutions are obtained. (
C) 1997 Academic Press.