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math.FA2019★ 12 cited
A Riesz basis criterion for Schrödinger operators with boundary conditions dependent on the eigenvalue parameter
Namig J. Guliyev
We establish a criterion for a set of eigenfunctions of the one-dimensional Schrödinger operator with distributional potentials and boundary conditions containing the eigenvalue pa…
math.FA2018★ 1 cited
On extensions of symmetric operators
Namig J. Guliyev
We give an explicit description of all minimal self-adjoint extensions of a densely defined, closed symmetric operator in a Hilbert space with deficiency indices .