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Title:Omejeni linearni operatorji na Hilbertovih prostorih : na študijskem programu 2. stopnje Matematika
Authors:ID Zakeršnik, Jimmy (Author)
ID Eremita, Daniel (Mentor) More about this mentor... New window
Files:.pdf MAG_Zakersnik_Jimmy_2025.pdf (1,26 MB)
MD5: FEE03B2C7657FA7BFCC9F21E5CE3FA96
 
Language:Slovenian
Work type:Master's thesis/paper
Typology:2.09 - Master's Thesis
Organization:FNM - Faculty of Natural Sciences and Mathematics
Abstract:V magistrskem delu predstavimo in preučujemo omejene linearne operatorje na Hilbertovih prostorih. V prvem delu uvedemo osnovne pojme in dokažemo ali navedemo nekatere rezultate s področja funkcionalne analize, kot so Hahn-Banachov izrek, izrek o odprti preslikavi ter Rieszov izrek. V drugem delu nato uvedemo pojem adjungiranega operatorja in z njegovo pomočjo naredimo pregled raznih posebnih tipov omejenih linearnih operatorjev. Posebej obravnavamo normalne, sebi-adjungirane in unitarne operatorje ter ortogonalne projektorje na kompleksnih Hilbertovih prostorih. Na koncu definiramo spekter omejenega linearnega operatorja na kompleksnem Hilbertovem prostoru in dokažemo nekaj osnovnih rezultatov. Te nato uporabimo pri nadaljnjem študiju omejenih linearnih operatorjev ter pri definiciji in proučevanju pozitivnih operatorjev na kompleksnih Hilbertovih prostorih.
Keywords:Linearna algebra, funkcionalna analiza, Hilbertov prostor, omejen linearen operator, spekter, spektralni radij, normalen operator, unitaren operator, sebi-adjungiran operator.
Place of publishing:Maribor
Place of performance:Maribor
Publisher:[J. Zakeršnik]
Year of publishing:2025
Number of pages:VIII, 69 f.
PID:20.500.12556/DKUM-93532 New window
UDC:517.983.24(043.2)
COBISS.SI-ID:246663171 New window
Publication date in DKUM:26.08.2025
Views:165
Downloads:36
Metadata:XML DC-XML DC-RDF
Categories:FNM
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Licences

License:CC BY-NC-ND 4.0, Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International
Link:http://creativecommons.org/licenses/by-nc-nd/4.0/
Description:The most restrictive Creative Commons license. This only allows people to download and share the work for no commercial gain and for no other purposes.
Licensing start date:26.08.2025

Secondary language

Language:English
Title:Bounded linear operators on Hilbert spaces : magistrsko delo
Abstract:In the thesis we define and study bounded linear operators on Hilbert spaces. In the first section we introduce some elementary concepts and prove or list some results from the field of functional analysis, such as the Hahn-Banach theorem, the open mapping theorem and the Riesz theorem. In the second section we then introduce the concept of an adjoint operator and use it to take a look at various special types of bounded linear operators. In particular, we study normal, self-adjoint and unitary operators as well as orthogonal projectors on complex Hilbert spaces. Finally, we define the concept of the spectrum of a bounded linear operator on a complex Hilbert space and prove some elementary results. We then use those results to continue studying bounded linear operators and to define and study positive operators on complex Hilbert spaces.
Keywords:Linear algebra, functional analysis, Hilbert space, bounded linear operator, spectrum, spectral radius, normal operator, unitary operator, self-adjoint operator.


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