King's College London

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20022011

most citedGauge Symmetry and Supersymmetry of Multiple M2-Branes

1.1k citations

Showing 2009 · math.SPShow all

3 papers · 2 filters

math.SP2009

The Birman-Schwinger principle on the essential spectrum

Alexander Pushnitski

Let $H_{0}$ and $H$ be self-adjoint operators in a Hilbert space. We consider the spectral projections of $H_{0}$ and $H$ corresponding to a semi-infinite interval of the real line. We…

math.SP2009

Spectral theory of discontinuous functions of self-adjoint operators: essential spectrum

Alexander Pushnitski

Let $H_{0}$ and $H$ be self-adjoint operators in a Hilbert space. In the scattering theory framework, we describe the essential spectrum of the difference $φ (H) - φ (H_{0})$ for piecewise…

math.SP2009

Spectral theory of discontinuous functions of self-adjoint operators and scattering theory

Alexander Pushnitski, Dmitri Yafaev

In the smooth scattering theory framework, we consider a pair of self-adjoint operators $H_{0}$ , $H$ and discuss the spectral projections of these operators corresponding to the inte…