We use a Pohozaev-type identity and monotone separation techniques to prove the uniqueness of negative radial solutions of $k$-Hessian equations in a finite
We study the polyharmonic problem Delta^m u=pm e^u in R^{2m},with m geq 2.In particular,we prove that for any V>0,there exists radial solutions of Delta
We consider Fisher-KPP equation with advection:ut=uxx-βux+f(u)for x∈(g(t),h(t)),where g(t)and h(t)are two free boundaries satisfying Stefan conditions.
In this talk,I will show the recent work cooperated with Lifeng Zhao and Ze Li.In the work,I will give the scattering in the energy space for nonlinear Schr
We show the global existence and $L^p$ convergence rates of planar diffusion waves for 3d bipolar Euler-Poisson system when the initial data is near the pla