摘要
In this paper we consider the nonexistence, esistence and uniqueness of limit cyclesaround the origin for a class of (2n+1)th order differential system which is moreextensive than paper [3].
In this paper we consider the nonexistence, esistence and uniqueness of limit cyclesaround the origin for a class of (2n+1)th order differential system which is moreextensive than paper [3].