2 problems

Let $d=2$ and let $\mathcal{W}_{-,i,1}^l(x,y)$ be the kernel arising in the decomposition of the wave operator for the Laplace operator with finite rank perturbations. In the case…

Let ${\bf L}^n_0$, with $n\in\mathbb{N}$, be a self-adjoint extension of the minimal operator $L^n_{\scriptstyle \text{min}}$ on $L^2[(a,b),w]$, with deficiency indices $(m,m)$ whe…