Singular Quadratic Forms in Perturbation Theory
Description
The notion of singular quadratic form appears in mathematical physics as a tool for the investigation of formal expressions corresponding to perturbations devoid of operator sense. Numerous physical models are based on the use of Hamiltonians containing perturba tion terms with singular properties. Typical examples of such expressions are Schrodin ger operators with O-potentials (-~ + AD) and Hamiltonians in quantum field theory with perturbations given in terms of operators of creation and annihilation (P(
Keywords
MathematicsFunctional AnalysisSciencePhysicsNuclearMathematical AnalysisQuantum Theory
1999Book
Author(s)V. D. Koshmanenko
PublisherSpringer Netherlands
ISBN9780792356257
LanguageEnglish
