Using φ-mapping method and topological current theory, the topological structure and bifurcation ofdisclination lines in two-dimensional liquid crystals are st
The methods for the few-body system are introduced to investigate the states of the barrier Li quantum dots (QDs) in an arbitrary strength of magnetic field. Th
In this first paper of a series, we study the difference discrete variational principle in the framework of multi-parameter differential approach by regarding t
Using the standard truncated Painleve analysis, we can obtain a Backlund transformation of the (3+1)-dimensional Nizhnik Novikov-Veselov (NNV) equation and get