All

What are you looking for?

All
Projects
Results
Organizations

Quick search

  • Projects supported by TA ČR
  • Excellent projects
  • Projects with the highest public support
  • Current projects

Smart search

  • That is how I find a specific +word
  • That is how I leave the -word out of the results
  • “That is how I can find the whole phrase”
EN
ČeštinaEnglish

Filters

49 865 (0,207s) •

Result

Approximation of Schrodinger operators with delta-interactions supported on hypersurfaces

We show that a Schrodinger operator A(delta,alpha) with a delta-interaction of strength alpha supported on a bounded or unbounded C-2-hypersurface Sigma subset of R-d of Hamiltonians with suitably scaled regular po...

Pure mathematics

  • 2017
    • •
  • Jimp
    • •
  • Link
Result

An Eigenvalue Inequality for Schrodinger Operators with delta- and delta '-interactions Supported on Hypersurfaces

We consider self-adjoint Schrodinger operators in L-2(R-d) with a delta-interaction of strength alpha and a delta'-interaction of strength beta, respectively, supported on a hypersurface, where alpha and b...

BE - Teoretická fyzika

  • 2015
    • •
  • D
Result

Boundary triples for Schrodinger operators with singular interactions on hypersurfaces

The self-adjoint Schrodinger operator A(delta, alpha) with a delta-interaction of constant strength alpha supported on a compact smooth hypersurface C is viewed parameter Theta(delta, alpha) in the boundar...

BE - Teoretická fyzika

  • 2016
    • •
  • Jx
    • •
  • Link
Result

Essential spectrum of Schrödinger operators with delta-interactions on the union of compact Lipschitz hypersurfaces

In this note we prove that the essential spectrum of a Schrödinger operator with ?-potential supported on a finite number of compact Lipschitz hypersurfaces is given by [0, +infinity) We emphasize that the union of a family of Lipschitz ...

BE - Teoretická fyzika

  • 2013
    • •
  • O
Result

Asymptotic spectral analysis in colliding leaky quantum layers

We consider the Schrodinger operator with a complex delta interaction supported by two parallel hypersurfaces in the Euclidean space of any dimension. We analyse spectral properties of the system in the limit when the dista...

Applied mathematics

  • 2017
    • •
  • Jimp
    • •
  • Link
Result

Generalized interactions supported on hypersurfaces

interactions supported by a hypersurface Sigma subset of R-n, n >= 2, being the boundary of Sigma the interaction is characterized by four real parameters, the earlier studied case of delta- and delta'-

BE - Teoretická fyzika

  • 2016
    • •
  • Jx
    • •
  • Link
Result

Schrodinger operators with delta- and delta '-interactions on Lipschitz surfaces and chromatic numbers of associated partitions

We investigate Schrodinger operators with delta- and delta'-interactions operators with delta- and delta'-interactions which is based on an optimal coloring to transform known results for Schrodin...

BE - Teoretická fyzika

  • 2014
    • •
  • Jx
    • •
  • Link
Result

Non-local relativistic δ-shell interactions

with the formal expression D-0+|F delta(Sigma)>< G delta(Sigma)|, where D-0 is the free Dirac operator, F and G are matrix valued coefficients, and delta(Sigma) stands for the single layer distribution supported on a h...

Applied mathematics

  • 2024
    • •
  • Jimp
    • •
  • Link
Result

Spectral Asymptotics for a δ' Interaction Supported by an Infinite Curve

In this paper we consider a generalized operator describing an attractive delta' interaction in a strong coupling limit. Delta' interaction is characterized by a coupling parameter and it is supported by a C4-smoot...

BE - Teoretická fyzika

  • 2014
    • •
  • D
    • •
  • Link
Result

Spectral asymptotics for a delta' interaction supported by an infinite curve

In this paper we consider a generalized operator describing an attractive delta' interaction in a strong coupling limit. Delta' interaction is characterized by a coupling parameter and it is supported by a C4-smoot...

BE - Teoretická fyzika

  • 2014
    • •
  • D
    • •
  • Link
  • 1 - 10 out of 49 865