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Citation link: http://nbn-resolving.de/urn:nbn:de:gbv:46-diss000106161
00010616.pdf
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Block Numerical Ranges


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00010616.pdf830.22 kBAdobe PDFView/Open
Other Titles: Blocknumerische Wertebereiche
Authors: Wagenhofer, Markus 
Supervisor: Tretter, Christiane 
1. Expert: Tretter, Christiane 
2. Expert: Langer, Heinz 
Abstract: 
The block numerical range (BNR) of a block operator matrix is a generalization of the numerical range of an operator acting on a Hilbert space. Main topics of this thesis are block diagonalizability of a block operator matrix if its BNR consists of the maximal number of connected components and spectral properties of corners of BNRs of block operator matrices and block operator functions.
Keywords: block operator matrix, block operator function, block numerical range, quadratic numerical range, numerical range
Issue Date: 14-Feb-2007
Type: Dissertation
URN: urn:nbn:de:gbv:46-diss000106161
Institution: Universität Bremen 
Faculty: FB3 Mathematik/Informatik 
Appears in Collections:Dissertationen

  

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