ENGLISH

Singular Quadratic Forms in Perturbation Theory

By Volodymyr Koshmanenko (auth.)

Book information

Publisher
Springer Netherlands
Year
1999
ISBN
978-94-010-5952-7, 978-94-011-4619-7
DOI
10.1007/978-94-011-4619-7
Language
english
Format
PDF
Filesize
10 MB (10742021 bytes)
Series
Mathematics and Its Applications 474
Edition
1
Pages
312\315
Orientation
yes
Scanned
yes
Time added
2013-08-01 04:00:00
Functional Analysis;Operator Theory;Elementary ParQuantum Field 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(

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