In this paper we give several new methods to study the existence and uniqueness of harmonic solutions and subharmonic on......

研究非自治系统Ｒａｙｌｅｉｇｈ方程解的终归有界性、调和解的存在性，利用其等价的平面系统和对应自治系统的平面系统一些条件、构造一条简单工线，从......