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On the absolutely continuous spectrum of block operator matrices
Author(s) -
Albeverio Sergio,
Konstantinov Alexei
Publication year - 2008
Publication title -
mathematische nachrichten
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.913
H-Index - 50
eISSN - 1522-2616
pISSN - 0025-584X
DOI - 10.1002/mana.200510661
Subject(s) - mathematics , absolute continuity , operator matrix , spectrum (functional analysis) , block (permutation group theory) , operator (biology) , pure mathematics , combinatorics , biochemistry , chemistry , physics , repressor , quantum mechanics , transcription factor , gene
We prove an abstract theorem on the preservation of the absolutely continuous spectrum for block operator matrices. (© 2008 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim)