Articles by Alexander K. Motovilov | Synthical

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Alexander K. Motovilov

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30

Two-fermion lattice Hamiltonian with first and second nearest-neighboring-site interactions

18 July 2023 by Saidakhmat Lakaev and others

Mathematical Physics, Spectral Theory

Optimal bounds on the speed of subspace evolution

26 May 2022 by Sergio Albeverio and Alexander Motovilov

Quantum Physics, Mathematical Physics

Quantum speed limits for time evolution of a system subspace

13 April 2022 by Sergio Albeverio and Alexander Motovilov

Quantum Physics, Mathematical Physics

Preserving of the unconditional basis property under non-self-adjoint perturbations of self-adjoint operators

29 January 2018 by Alexander Motovilov and Andrei Shkalikov

Spectral Theory

Solvability of the operator Riccati equation in the Feshbach case

15 December 2017 by Sergio Albeverio and Alexander Motovilov

Spectral Theory

On invariant graph subspaces of a J-self-adjoint operator in the Feshbach case

3 May 2016 by Sergio Albeverio and Alexander Motovilov

Spectral Theory, Mathematical Physics

An alternative proof of the a priori \tanΘ Theorem

8 October 2015 by Alexander Motovilov

Spectral Theory, Functional Analysis

Bounds on variation of the spectrum and spectral subspaces of a few-body Hamiltonian

13 October 2014 by Sergio Albeverio and Alexander Motovilov

Mathematical Physics, Quantum Physics

On applying the subspace perturbation theory to few-body Hamiltonians

26 November 2013 by Alexander Motovilov

Quantum Physics, Mathematical Physics

Comment on `The tan θ theorem with relaxed conditions', by Y. Nakatsukasa

26 October 2012 by Alexander Motovilov

Spectral Theory, Numerical Analysis

The a priori Tan Theta Theorem for spectral subspaces

9 April 2012 by Sergio Albeverio and Alexander Motovilov

Spectral Theory, Mathematical Physics

Sharpening the norm bound in the subspace perturbation theory

6 December 2011 by Sergio Albeverio and Alexander Motovilov

Spectral Theory, Mathematical Physics

The ^4He trimer as an Efimov system

18 April 2011 by Elena Kolganova and others

Atomic and Molecular Clusters, Nuclear Theory

Bounds on the spectrum and reducing subspaces of a J-self-adjoint operator

7 September 2009 by Sergio Albeverio and others

Spectral Theory, Mathematical Physics

Progress in methods to solve the Faddeev and Yakubovsky differential equations

4 December 2007 by Alexander Motovilov

Quantum Physics, Mathematical Physics

Perturbation of spectra and spectral subspaces

23 July 2007 by Vadim Kostrykin and others

Spectral Theory, Mathematical Physics

Ultracold scattering processes in three-atomic helium systems

15 July 2007 by Elena Kolganova and others

Atomic and Molecular Clusters, Chemical Physics

Resonances of Multichannel Systems

17 February 2007 by Alexander Motovilov

Quantum Physics, Mathematical Physics

Some sharp norm estimates in the subspace perturbation problem

8 April 2006 by Alexander Motovilov and Alexei Selin

Spectral Theory, Mathematical Physics

The a priori tanθtheorem for eigenvectors

23 December 2005 by Sergio Albeverio and others

Spectral Theory, Numerical Analysis

Scattering length for helium atom-diatom collision

5 December 2005 by Elena Kolganova and others

Atomic and Molecular Clusters

Operator integrals with respect to a spectral measure and solutions to some operator equations

28 November 2005 by Sergio Albeverio and Alexander Motovilov

Spectral Theory, Functional Analysis

Explicit Representations for the T-Matrix on Unphysical Energy Sheets and Resonances in Two- and Three-Body Systems

28 November 2005 by Alexander Motovilov

Atomic and Molecular Clusters, Mathematical Physics

Perturbation of finite-lattice spectral levels by nearby nuclear resonances

25 December 2004 by Alexander Motovilov and Vladimir Belyaev

Other Condensed Matter

Scattering length of the helium atom - helium dimer collision

4 August 2004 by Elena Kolganova and others

Atomic and Molecular Clusters, Chemical Physics

On the existence of solutions to the operator Riccati equation and the tanΘtheorem

29 May 2003 by Vadim Kostrykin and others

Spectral Theory, Mathematical Physics

A generalization of the tan 2Θ Theorem

3 February 2003 by Vadim Kostrykin and others

Spectral Theory

Existence and uniqueness of solutions to the operator Riccati equation. A geometric approach

15 July 2002 by Vadim Kostrykin and others

Spectral Theory

On a Subspace Perturbation Problem

22 May 2002 by Vadim Kostrykin and others

Spectral Theory, Mathematical Physics

Graph Subspaces and the Spectral Shift Function

4 December 2001 by Sergio Albeverio and others

Spectral Theory, Mathematical Physics

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Mathematical Physics Spectral Theory Quantum Physics Functional Analysis Atomic and Molecular Clusters Nuclear Theory Numerical Analysis Computational Physics Chemical Physics Other Condensed Matter