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The Reflection Principle for One-dimensional Quasiminimizers
Linköping University, Department of Mathematics.
2009 (English)Independent thesis Advanced level (degree of Master (One Year)), 20 credits / 30 HE creditsStudent thesis
Abstract [en]

In this paper the reflection-extension of one-dimensional quasiminimizers is studied.A brief introduction to quasiminimizers, focused on the one-dimensional ones, is given.The main result of the study concerns the size of the quasiminimizing constant of theextended function relative to the unextended one. Previous work by O. Martio gives anupper bound for this relation. This bound is lowered, and the new bound is proven to besharp.Sharp quasiminimizer constants are calculated for a few simple functions and theirreflection-extensions.

Abstract [sv]

I det här arbetet studeras reflektionsutvidgningen av endimensionella kvasiminimerare.En kortfattad introduktion till kvasiminimerare, fokuserad på de endimensionella, ges.Huvudresultatet av arbetet rör storleken av kvasiminimerarkonstanten för den utvidgade funktionen i förhållande till den outvidgade. Tidigare arbete av O. Martio ger en övre gräns för detta förhållande. Den  gränsen sänks, och den nya gränsen visas vara skarp.Skarpa kvasiminimerarkonstanter ges för ett par enkla funktioner och för deras reflektionsutvidgningar.

Place, publisher, year, edition, pages
2009. , 37 p.
National Category
Mathematics
Identifiers
URN: urn:nbn:se:liu:diva-19162ISRN: LiTH-MAT-EX--2009/04--SEOAI: oai:DiVA.org:liu-19162DiVA: diva2:225219
Subject / course
Applied Mathematics
Presentation
2009-05-28, Kompakta rummet, Linköpings universitet, Linköping, 10:15 (Swedish)
Uppsok
Physics, Chemistry, Mathematics
Supervisors
Examiners
Available from: 2009-06-25 Created: 2009-06-12 Last updated: 2011-07-08Bibliographically approved

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CiteExportLink to record
Permanent link

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Cite
Citation style
  • apa
  • harvard1
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • oxford
  • Other style
More styles
Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
  • html
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  • asciidoc
  • rtf