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Forever Young: Convolution Inequalities in Weighted Lorentz-type SpacesPrimeFaces.cw("AccordionPanel","widget_formSmash_some",{id:"formSmash:some",widgetVar:"widget_formSmash_some",multiple:true}); PrimeFaces.cw("AccordionPanel","widget_formSmash_all",{id:"formSmash:all",widgetVar:"widget_formSmash_all",multiple:true});
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2014 (English)Licentiate thesis, comprehensive summary (Other academic)
##### Abstract [en]

##### Place, publisher, year, edition, pages

Karlstad: Karlstads universitet, 2014. , p. 23
##### Series

Karlstad University Studies, ISSN 1403-8099 ; 2014:21
##### Keywords [en]

Convolution, Young inequality, Lorentz spaces, weights, rearrangement-invariant spaces
##### National Category

Mathematical Analysis
##### Research subject

Mathematics
##### Identifiers

URN: urn:nbn:se:kau:diva-31754ISBN: 978-91-7063-552-6 (print)OAI: oai:DiVA.org:kau-31754DiVA, id: diva2:706959
##### Presentation

2014-05-09, 3B426, Karlstads universitet, Universitetsgatan 2, Karlstad, 10:15 (English)
##### Opponent

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##### Note

##### List of papers

This thesis is devoted to an investigation of boundedness of a general convolution operator between certain weighted Lorentz-type spaces with the aim of proving analogues of the Young convolution inequality for these spaces.

Necessary and sufficient conditions on the kernel function are given, for which the convolution operator with the fixed kernel is bounded between a certain domain space and the weighted Lorentz space of type Gamma. The considered domain spaces are the weighted Lorentz-type spaces defined in terms of the nondecreasing rearrangement of a function, the maximal function or the difference of these two quantities.

In each case of the domain space, the corresponding Young-type convolution inequality is proved and the optimality of involved rearrangement-invariant spaces in shown.

Furthermore, covering of the previously existing results is also discussed and some properties of the new rearrangement-invariant function spaces obtained during the process are studied.

Paper II was a manuscript at the time of the defense.

Available from: 2014-04-17 Created: 2014-03-24 Last updated: 2019-07-12Bibliographically approved1. Convolution inequalities in weighted Lorentz spaces$(function(){PrimeFaces.cw("OverlayPanel","overlay706894",{id:"formSmash:j_idt500:0:j_idt504",widgetVar:"overlay706894",target:"formSmash:j_idt500:0:partsLink",showEvent:"mousedown",hideEvent:"mousedown",showEffect:"blind",hideEffect:"fade",appendToBody:true});});

2. Convolution in Rearrangement-Invariant Spaces Defined in Terms of Oscillation and the Maximal Function$(function(){PrimeFaces.cw("OverlayPanel","overlay922437",{id:"formSmash:j_idt500:1:j_idt504",widgetVar:"overlay922437",target:"formSmash:j_idt500:1:partsLink",showEvent:"mousedown",hideEvent:"mousedown",showEffect:"blind",hideEffect:"fade",appendToBody:true});});

3. Convolution in weighted Lorentz spaces of type Γ$(function(){PrimeFaces.cw("OverlayPanel","overlay706896",{id:"formSmash:j_idt500:2:j_idt504",widgetVar:"overlay706896",target:"formSmash:j_idt500:2:partsLink",showEvent:"mousedown",hideEvent:"mousedown",showEffect:"blind",hideEffect:"fade",appendToBody:true});});

isbn
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