2 papers
math-ph2017
Approximation of eigenvalues of Schrödinger operators
Johannes F. Brasche, Robert Fulsche
It is known that convergence of l.s.b. closed symmetric sesquilinear forms implies norm resolvent convergence of the associated self-adjoint operators and this in turn convergence…
math-ph2005
Convergence of Schrodinger operators
J. F. Brasche, K. Ozanova
For a large family of real-valued Radon measures m on R^d, including the Kato class, the operators -Δ+ C^2 Δ^2 + m tend to the Schrodinger operator -Δ+m in the norm resolvent sense…