All Questions

Consider the following NLS: $$i u_t + \Delta u- 2 \operatorname{Re} u = F(u),$$ where $F(u):=(u + \bar{u} + |u|^2)u.$ In Scattering for the Gross–Pitaevskii equation, the authors S. Gustafson, K. ...

My research has brought me to the following linear parabolic second order PDE: $$ \frac{\partial^2}{\partial x^2}\Psi(t,x)=c(t,x)\frac{\partial}{\partial t}\Psi(t,x) $$ for $c(t,x)=-\frac{t}{x}$ and $...

I am studying the Hartree equation for N-particles for the first time and things are not clear to me. Given the density matrix $$\gamma_{N, t}^{(n)} (x_1,..,n_n; y_1,...,y_n) = \begin{cases} \int \...

Consider the following quadratic Schrödinger equation in $Q_T = \Omega \times [0,T]$: $$\begin{cases} i \partial_t u + \kappa(x,t) \Delta u + \beta(x,t) u^2 = f(x,t)\\ u(x,0) = ...