We study spectral properties of one-dimensional singular nonselfadjoint perturbations of an
unbounded selfadjoint operator and give criteria for the possibility to remove the whole …

This work presents a contemporary treatment of Krein's entire operators with deficiency
indices $(1, 1) $ and de Branges' Hilbert spaces of entire functions. Each of these theories …

We study singular Schrödinger operators on a finite interval as selfadjoint extensions of a
symmetric operator. We give sufficient conditions for the symmetric operator to be in the n n …

In the Bargmann representation, we study mathematically rigorously some interesting
spectral properties of generalized Gribov–Intissar's operator: H _ λ', μ, λ= λ'a^*^ p+ 1 a^ p+ …

Oversampling and Undersampling in de Branges Spaces Arising from Regular Schrödinger
Operators | Complex Analysis and Operator Theory Skip to main content SpringerLink Log in …

We present square-wave voltammetry (SWV) and controlled potential coulometry (bulk
electrolysis) experiments performed on maghemite and ferrite nanoparticles of core–shell …

This work is devoted to dissipative extension theory for dissipative linear relations. We give a
self-consistent theory of extensions by generalizing the theory on symmetric extensions of …

We investigate the connections between Weyl–Titchmarsh–Kodaira theory for one-
dimensional Schrödinger operators and the theory of $ n $-entire operators. As our main …

When the classical Hamburger moment problem has solutions, it has either exactly one
solution or infinitely many solutions. Correspondingly, the moment problem is said to be …

Abstract In Communications in Mathematical Physics, no. 199,(1998), we have considered
the Heun operator H= a∗(a+ a∗) a acting on Bargmann space where a and a∗ are the …