【摘要】 给出 Riccati型方程x=A( t) x2 m+B( t) x2 k- 1 +C( t)( A( t) ,B( t) ,C( t)是周期为 T的连续函数 ,m,k∈ N且 m≥ k)无周期解及存在周期解的充分条件 .更多还原

【Abstract】 In the paper, a class of Riccati type equations with periodic coefficients: =A(t)x 2m +B(t)x 2k-1 +C(t) (where, A(t),B(t),C(t) are continous functions with periodic T,m,k∈ N and m≥k ) is discussed, sufficient conditions for existence of periodic solutions are given.更多还原