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20032021
most citedSpectral gap for quantum graphs and their connectivity

52 citations · 97 across the 13 of their papers we have counts for

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6 papers · 1 filter

math-ph2019

Green matrix estimates of block Jacobi matrices II: Bounded gap in the essential spectrum

Jan Janas, Sergey Naboko, Luis O. Silva

This paper provides decay bounds for Green matrices and generalized eigenvectors of block Jacobi operators when the real part of the spectral parameter lies in a bounded gap of the…

math-ph2018★ 2 cited

Unified approach to critical-contrast homogenisation with explicit links to time-dispersive media

Kirill Cherednichenko, Yulia Ershova, Alexander Kiselev +1

A novel approach to critical-contrast homogenisation is proposed. Norm-resolvent asymptotics are explicitly constructed. An essential feature of our approach is that it relates hom…

math-ph2018

Green matrix estimates of block Jacobi matrices I: Unbounded gap in the essential spectrum

Jan Janas, Sergey Naboko, Luis O. Silva

This work deals with decay bounds for Green matrices and generalized eigenvectors of block Jacobi matrices when the real part of the spectral parameter lies in an infinite gap of t…

math-ph2017

On the instability of the essential spectrum for block Jacobi matrices

Stanislas Kupin, Sergey Naboko

We are interested in the phenomenon of the essential spectrum instability for a class of unbounded (block) Jacobi matrices. We give a series of sufficient conditions for the matric…

math-ph2010★ 17 cited

Simplicity of eigenvalues in Anderson-type models

Sergey Naboko, Roger Nichols, Günter Stolz

We show almost sure simplicity of eigenvalues for several models of Anderson-type random Schrödinger operators, extending methods introduced by Simon for the discrete Anderson mode…

math-ph2003

Fractional Moment Methods for Anderson Localization in the Continuum

Michael Aizenman, Alexander Elgart, Sergey Naboko +2

The fractional moment method, which was initially developed in the discrete context for the analysis of the localization properties of lattice random operators, is extended to appl…