摘要

This paper is concerned with the anti-periodic boundary value problems for nonlinear higher order impulsive differential equations @@@ { x((n))(t) = f(t, x(t), x'(t), ... ,x((n-1))(t)), t is an element of[0, T], t not equal t(k), k = 1, ...,p, @@@ Delta x((i))(t(k)) = I-i,I-k(x(t(k)), x'(t(k)), ..., x((n-1))(t(k))), k =1, ..., p, i = 0, ..., n-1, @@@ x((i))(0) = -x((i))(T), i = 0, ..., n-1, @@@ We obtain sufficient conditions for the existence of at least one solution. Examples are presented to illustrate the main results.