摘要
运用LeggettWilliams不定点理论,给出了离散方程存在3个非负解的约束条件.
Restraint conditions are developed for the existence of three nonnegative solutions to discrete equations.The strategy involves using the Leggett Williams fixed point theorem.
出处
《商丘师范学院学报》
CAS
2004年第5期55-57,共3页
Journal of Shangqiu Normal University