The structure of symplectic groups over semi-local rings Tang XiangpuAn Jianbei OriginalPaper Pages: 1 - 15
On a class of second order partial differential operators of non-principal type Huang Yumin OriginalPaper Pages: 35 - 40
St. Frunzâ's conjecture and strongly decomposable operators Zou ChengzuSun Shanli OriginalPaper Pages: 41 - 46
Arithmetic characterization of algebraic number fields with class group given Feng Keqin OriginalPaper Pages: 47 - 54
A class of nonlinear evolution equations solvable by the inverse spectral transform Zhuang DaweiLi Yishen OriginalPaper Pages: 55 - 71
The construction of hyperbolic surfaces in 3 dimensional minkowski space and sinh-laplace equation Hu Hesheng OriginalPaper Pages: 79 - 86
Periodic solutions for the semilinear spherical wave equation Chang KungchingHong Chongwei OriginalPaper Pages: 87 - 97