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Title:Numerični zaklad
Authors:ID Gajšek, Magdalena (Author)
ID Benkovič, Dominik (Mentor) More about this mentor... New window
Files:.pdf MAG_Gajsek_Magdalena_2014.pdf (345,79 KB)
MD5: 0641BA72413C3E56B6EEB88B2BC5CBB0
 
Language:Slovenian
Work type:Master's thesis/paper
Typology:2.09 - Master's Thesis
Organization:FNM - Faculty of Natural Sciences and Mathematics
Abstract:V prvem poglavju zapišemo uvod magistrskega dela. V drugem poglavju so opisani osnovni pojmi iz teorije normiranih prostorov, linearnih preslikav in matrik. V glavnem delu formuliramo Toeplitz-Hausdorffov izrek, ki pravi, da je numerični zaklad konveksna množica. Zapišemo tudi izrek o spektralni inkluziji, ki pove, da spekter operatorja leži v numeričnem zakladu. Dokažemo lastnosti numeričnega zaklada povezanih s sebiadjungiranimi in normalnimi operatorji. Nato definiramo numerični radij, podamo njegov primer in osnovne rezultate. Posebej obravnavamo numerični zaklad operatorjev (matrik) na končno dimenzionalnih vektorskih prostorih in določimo množice, ki vsebujejo numerični zaklad. Zatem so izpeljane ocene numeričnih radijev 0-1 matrik. Na koncu zapišemo posplošitve numeričnega zaklada.
Keywords:numerični zaklad, numerični radij, Hilbertov prostor, omejen linearni operator, matrika, spekter
Place of publishing:Maribor
Publisher:[M. Gajšek]
Year of publishing:2013
PID:20.500.12556/DKUM-46670 New window
UDC:512.64(043.2)
COBISS.SI-ID:20926984 New window
NUK URN:URN:SI:UM:DK:1BHAXGKQ
Publication date in DKUM:09.12.2014
Views:2047
Downloads:109
Metadata:XML DC-XML DC-RDF
Categories:FNM
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Secondary language

Language:English
Title:Numerical range
Abstract:In the first chapter is written an introduction of master thesis. The second chapter describes basic concepts from the theory of normed spaces, linear mapping and matrices. In main part is formulated Toeplitz-Hausdorff theorem, which says that the numerical range is convex set. We written also theorem about spectral inclusion, which says that the spectrum of operator lies in the numerical range. We prove properties of numerical range connected with selfadjoint and normal operators. Then is defined numerical radius, his example and basic results. Specially we treat numerical range operators on finite dimensions vector spaces and we determine sets containing numerical range. After that are derived numerical radius estimates of 0-1 matrices. At the end are written generalization of numerical range.
Keywords:numerical range, numerical radius, Hilbert space, bounded linear operator, matrix, spectrum


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