...

By making use of the φ-mapping topological current theory,this paper shows that the Gauss-Bonnet-Che densityof δ(φ),w......

We offer an intrinsic theoretical framework to reveal the inner relationships among three theories for Euler we consider......

讨论了扭曲闭2-膜,即膜的一端满足通常的边界条件,另一端满足扭曲的边界条件,特别讨论了其Casimir能量,并利用Epstein-Hurwitz型ze......

It has been indicated that relational logic may serve as the common foundation of quantum mechanics and string theory. A......