Title
Prostori harmonijskih funkcija i harmonijska kvazikonformna preslikavanja
Creator
Shkheam, Abejela
Copyright date
2013
Object Links
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License description
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Language
English
Cobiss-ID
Theses Type
Doktorska disertacija
description
Datum odbrane: 09.10.2013.
Other responsibilities
mentor
Arsenović, Miloš, 1962-
član komisije
Božin, Vladimir
član komisije
Mateljević, Miodrag, 1949-
član komisije
Manojlović, Vesna
član komisije
Mihić, Olivera, 1974-
University
Univerzitet u Beogradu
Faculty
Matematički fakultet
Alternative title
Spaces of harmonic functions and harmonic quasiconformal mappings
Publisher
[A. Shkheam]
Format
III, 64 lista
description
Mathematics - Complex analysis / Matematika - Kompleksna analiza
Abstract (en)
This thesis has been written under the supervision of my mentor, Prof. dr. Miloš
Arsenović at the University of Belgrade academic, and my co-mentor dr. Vladimir
Božin in year 2013. The thesis consists of three chapters. In the first chapter we start
from defnition of harmonic functions (by mean value property) and give some of their
properties. This leads to a brief discussion of homogeneous harmonic polynomials, and
we also introduce subharmonic functions and subharmonic behaviour, which we need
later. In the second chapter we present a simple derivation of the explicit formula for the
harmonic Bergman reproducing kernel on the ball in euclidean space and give a proof that
the harmonic Bergman projection is Lp bounded, for 1 < p < 1, we furthermore discuss
duality results. We then extend some of our previous discussion to the weighted Bergman
spaces. In the last chapter, we investigate the Bergman space for harmonic functions bp,
0 < p < 1 on RnnZn. In the planar case we prove that bp 6= f0g for all 0 < p < 1.
Finally we prove the main result of this thesis bq c bp for n=(k + 1) < q < p < n=k,
(k = 1; 2; :::). This chapter is based mainly on the published paper [44]. M. Arsenović,
D. Kečkić,[5] gave analogous results for analytic functions in the planar case. In the
plane the logarithmic function log jxj, plays a central role because it makes a diference
between analytic and harmonic case, but in the space the function /x/2-n; n > 2 hints at
the contrast between harmonic function in the plane and in higher dimensions.
Authors Key words
Bergman space, harmonic functions, subharmonic functions, analytic functions
Authors Key words
Bergmanovi prostori, harmonijske funkcije, subharmonijske funkcije, analitičke funkcije
Classification
517.57+517.54(043.3)
Type
Tekst
Abstract (en)
This thesis has been written under the supervision of my mentor, Prof. dr. Miloš
Arsenović at the University of Belgrade academic, and my co-mentor dr. Vladimir
Božin in year 2013. The thesis consists of three chapters. In the first chapter we start
from defnition of harmonic functions (by mean value property) and give some of their
properties. This leads to a brief discussion of homogeneous harmonic polynomials, and
we also introduce subharmonic functions and subharmonic behaviour, which we need
later. In the second chapter we present a simple derivation of the explicit formula for the
harmonic Bergman reproducing kernel on the ball in euclidean space and give a proof that
the harmonic Bergman projection is Lp bounded, for 1 < p < 1, we furthermore discuss
duality results. We then extend some of our previous discussion to the weighted Bergman
spaces. In the last chapter, we investigate the Bergman space for harmonic functions bp,
0 < p < 1 on RnnZn. In the planar case we prove that bp 6= f0g for all 0 < p < 1.
Finally we prove the main result of this thesis bq c bp for n=(k + 1) < q < p < n=k,
(k = 1; 2; :::). This chapter is based mainly on the published paper [44]. M. Arsenović,
D. Kečkić,[5] gave analogous results for analytic functions in the planar case. In the
plane the logarithmic function log jxj, plays a central role because it makes a diference
between analytic and harmonic case, but in the space the function /x/2-n; n > 2 hints at
the contrast between harmonic function in the plane and in higher dimensions.
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