Crystal growth and solute precipitation is a Stefan problem.It is a free boundary problem for a parabolic partial differential equation with a time-dependent ph
The central subject of studying in this paper is incompressible pairwise incompressible surfaces in link complements. Let L be a non-split prime link and let F
According to the epidemic state, propagation mode and transformation between HBV infection states,the Hepatitis B Virus (HBV) infection with impulsive vaccinati