18 citations · 24 across the 6 of their papers we have counts for
6 papers
Disclination in Lorentz Space-Time
Sheng Li
The disclination in Lorentz space-time is studied in detail by means of topological properties of -mapping. It is found the space-time disclination can be described in term of a…
The Topological Structure of Nieh-Yan Form and Chiral Anomaly in Spaces with Torsion
Sheng Li
The topological structure of the Nieh-Yan form in 4-dimensional manifold is given by making use of the decomposition of spin connection. The case of the generalized Nieh-Yan form o…
Decomposition Theory of Spin Connection and Topological Structure of Gauss-Bonnet-Chern Theorem on Manifold With Boundary
Sheng Li, Yishi Duan
The index theorem of Euler-Poincaré characteristic of manifold with boundary is given by making use of the general decomposition theory of spin connection. We shows the sum of the…
SO(4) Monopole As A New Topological Invariant And Its Topological Structure
Sheng Li, Yishi Duan
By making use of the decomposition theory of gauge potential, the inner structure of SU(2) and SO(4) gauge theory is discussed in detail. We find the SO(4) monopole can be given vi…
The Topological Structure of the Space-Time Disclination
Yishi Duan, Sheng Li
The space-time disclination is studied by making use of the decomposition theory of gauge potential in terms of antisymmetric tensor field and -mapping method. It is shown that…
The Bifurcation of the Topological Structure in the Sunspot's Electric Topological Current with Locally Gauge-invariant Maxwell-Chern-Simons Term
Sheng Li, Yishi Duan
The topological structure of the electric topological current of the locally gauge invariant Maxwell-Chern-Simons Model and its bifurcation is studied. The electric topological cha…