Factorization theorem for the transfer function of a 2x2 operator matrix with unbounded couplings

dc.creatorHardt, V.
dc.creatorMennicken, R.
dc.creatorMotovilov, A. K.
dc.date1999-12-29
dc.date.accessioned2026-07-07T05:32:31Z
dc.date.available2026-07-07T05:32:31Z
dc.descriptionWe consider the analytic continuation of the transfer function associated with a 2x2 operator matrix having unbounded couplings into unphysical sheets of its Riemann surface. We construct a family of non-selfadjoint operators which factorize the transfer function and reproduce certain parts of its spectrum including the nonreal (resonance) spectrum situated in the unphysical sheets neighboring the physical sheet.
dc.descriptionLaTeX2e, 14 pages, no figures
dc.identifierhttps://arxiv.org/abs/math/9912220
dc.identifierhttp://arxiv.org/abs/math/9912220
dc.identifierSpectral and evolution problems (Natl. Taurida Univ. "V. Vernadsky", Simferopol') {\bf 10} (2000), 56-65
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/79686
dc.subjectSpectral Theory
dc.subjectMathematical Physics
dc.subjectFunctional Analysis
dc.subjectNuclear Theory
dc.subjectQuantum Physics
dc.titleFactorization theorem for the transfer function of a 2x2 operator matrix with unbounded couplings
dc.typetext

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