Optimal bounds for embedded eigenvalues of one-dimensional discrete Schrödinger operators with decaying potentials

Jifeng Chu, Wencai Liu, Kang Lyu

In this paper, we consider one-dimensional discrete Schrödinger operators \begin{align} Hu(n)=(Δ+V)u(n)\nonumber \end{align} on ${\ell }^2(\mathbb{N})$ with a self-adjoint boundary co…