The project supported by the National Natural Science Foundations of China under Grant (Nos. 10475055, 10601033, and 40305009) and National Basic Research Program of China (973 Program) under Grant (N
<正> The generalized Thirring model with impurity coupling is defined on two-dimensional noncommutativespace-time,a modified propagator and free energy are deri
<正> Vortices in the N-gap(N≥1)superconductor is studied by Dirac δ function.The topological structure ofvortices can be characterized by Brouwer degree and H