2008/06/04 by Mondher Damak, Damak, Mondher, Vladimir Georgescu +1 · 1 citation
Materials Science · Mathematics · Physics and Astronomy · #46L60 #47L90 #81Q10 #Advanced Operator Algebra Research #FOS: Mathematics #FOS: Physical sciences #Lanthanide and Transition Metal Complexes #Mathematical Physics (math-ph) #Operator Algebras (math.OA) #Spectral Theory in Mathematical Physics #math-ph #math.MP #math.OA #msc:46L60 #msc:47L90 #msc:81Q10
paper · pdf · doi:10.48550/arxiv.0806.0827
arxiv created 2008/06/04 · openalex publication_date 2008/06/04 · arxiv updated 2009/12/01 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28
We study the spectral properties of a class of many channel Hamiltonians which contains those of systems of particles interacting through k-body and field type forces which do not preserve the number of particles. Our results concern the essential spectrum, the Mourre estimate, and the absence of singular continuous spectrum. The appropriate formalism involves graded C*-algebras and Hilbert C*-modules as basic tools.