DESCRIPTION OF THE ESSENTIAL AND DISCRETE SPECTRUM OF A 3 × 3 OPERATOR MATRIX IN FERMIONIC FOCK SPACE

Аннотация

We consider a model operator 2 A associated with the energy operator of a lattice system describing three particles in interactions, without conservation of the number of particles. This operator acts in the cut subspace of fermionic Fock space. The essential and discrete spectrum of 2 A are described.

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DOI

10.18642/jmsaa_7100121492

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