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History and current state of recreational mathematics and its relation to serious mathematics
Bártlová, Tereza ; Pick, Luboš (advisor) ; Silva, Jorge Nuno (referee) ; Levy, Doron (referee)
Dissertation abstract The present thesis is devoted to the study of recreational mathematics, with a particular emphasis on its history, its relation to serious mathematics and its educational benefits. The thesis consists of five papers. In the first one we investigate the history of recreational mathematics. We focus on the development of mathematical problems throughout history, and we try to point out the people who had an important influence on the progress of recreational mathematics. The second article is dedicated to Edwin Abbott Abbott and his book called Flatland. It is one of the first popularizing books on geometry. In the third article we review one of the prominent personalities of recreational mathematics, Martin Gardner. The fourth article is in some sense a sequel to the third one. It deals with treachery of mathematical intuition and mathematical April Fool's hoaxes. The last article is devoted to the implementation recreational mathematics to education of students. 1
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Optimal pairs of function spaces for weighted Hardy operators
Oľhava, Rastislav ; Pick, Luboš (advisor) ; Gurka, Petr (referee)
Title: Optimal pairs of function spaces for weighted Hardy operators Author: Rastislav Ol'hava Department: Department of Mathematical Analysis Supervisor of the master thesis: Prof. RNDr. Luboš Pick, CSc., DSc., Department of Mathematical Analysis, Faculty of Mathematics and Physics, Charles University, Sokolovská 83, 186 75 Prague 8, Czech Republic Abstrakt: We focus on a certain weighted Hardy operator, with a continuous, quasi- concave weight, defined on a rearrangement-invariant Banach function spaces. The op- erators of Hardy type are of great use to the theory of function spaces. The mentioned operator is a more general version of the Hardy operator, whose boundedness was shown to be equivalent to a Sobolev-type embedding inequality. This thesis is con- cerned with the proof of existence of domain and range spaces of our Hardy operator that are optimal. This optimality should lead to the optimality in the Sobolev-type embedding equalities. Our another aim is to study supremum operators, which are also closely related to this issue, and establish some of their basic properties. Keywords: optimality, weighted Hardy operator, supremum operator
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Laplaceova transformace na prostorech funkcí
Buriánková, Eva ; Pick, Luboš (advisor) ; Nekvinda, Aleš (referee)
In this manuscript we study the action of the Laplace transform on rearrangement-invariant Banach function spaces. Our principal goal is to characterize the optimal range space corresponding to a given domain space within the category of rearrangement-invariant Banach function spaces. We first prove a key pointwise estimate of the non-increasing rearrangement of the image under the Laplace transform of a given function. Then we use this inequality to carry out the construction of the optimal range space. We apply this general result to establish an optimality relation between the Lebesgue and Lorentz spaces under the Laplace transform.
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Kompaktní a slabě kompaktní operátory v Banachových prostorech funkcí
Musil, Vít ; Pick, Luboš (advisor) ; Gurka, Petr (referee)
We study properties of weak topologies induced on Ba- nach function spaces by certain subsets of their associate spaces. We characterise relative sequential compactness in the weak topology and prove that the notions of relative weak compactness and relative weak sequential compactness coincide. Finally we apply the results attained to linear operators and their adjoints acting on Banach function spaces.
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Banach Function Spaces
Marko, Ján ; Pick, Luboš (advisor) ; John, Oldřich (referee)
N'a/ev prace: Banarhovy prostory fuiikci Autor: Jan Marko Katcdr;i: KaTedra inaleniaticke analy/y Yedouci bakalarske prace: doc1. UN Dr. Lubus Pick. CSc.. DSc. t'-inail vedoudho: Lubos.Pick'i'inff.cuni.c/ Abst.ra.kt.: V t.ejto ])riici su popisane xakladne vlastnosti Baimchovho priostoru funkcii. jeho podpriestor funkfii s absolutnc spujitou iiorniou a asociovany Banai-liov priestor I'luikcii. Zaobcra sa lie/ problcinal.ikou Lcbcsgucovycli pricslorov ['unkcii. branycli ako Banadiovo priest ory funkcif. \ Icxte su vyprarovaiu'1 priklady lykajuce sa.vlastnosti niicr ineratel'nych priosl.orov a k-h vplyv na ist udovanc'1 podpricstory. Taklio/ su vypracovaiK'1 priklady Baiia- chovyi'li iiorioni. iin ])n'sliisiio limiacliovc priest ory funkfii a. ich /;ikladne. N'la Klfcova slova: Banacliuva noriiia. Banacliov prieslor I'uukcif, asociovany prieslor. spojita noriua Title: Banach funct ion spaces Author: Jan Marko Department: Department of Mathematical Analysis Supervisor: doc. HNDr. Lubus Pick, CSc.. DSc. 'rvisor's e-mail address: Lubos.Pick'imir.cuni.cx Abstract: This thesis describes basic properties of Banach function spaces, its subspace of functions of absolutely continuous norm and its associa.lt; space.. II.also deals with problems of Lebesgue spaces considered to be Banach function spaces. Several problems...
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Weighted rearrangement-invariant function spaces
Soudský, Filip ; Pick, Luboš (advisor) ; Nekvinda, Aleš (referee)
In this thesis we focus on generalized Gamma spaces GΓ(p, m, v) and classify some of their intrinsic properties. In an article called Relative Re- arrangement Methods for Estimating Dual Norm (for details see references), the authors attempted to characterize their associate norms but obtained only several one-sided estimates. Equipped with these, they further showed reflexivity of gener- alized Gamma spaces for p ≥ 2 and m > 1 under an additional restriction that the underlying measure space is of finite measure. However, the full characterization of the associate norm and of the reflexivity of such spaces for 2 > p > 1 remained an open problem. In this thesis we shall fill this gap. We extend the theory to a σ-finite measure space. We present a complete characterization of the associate norm, and we find necessary and sufficient conditions for the reflexivity of such spaces. 1
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