Poincaré duality for open sets in Euclidean spaces

Todistamme tässä työssä Poincarén dualiteetin Euklidisten avaruuksien avoimille joukoille. Annamme lyhyen johdatuksen differentiaaligeometriaan ja määrittelemme de Rham -kohomologian käsitteen. Itse Poincarén dualiteetin todistuksen aloitamme muutamalla aputuloksella. Näytämme ensin, että Poincarén...

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Main Author: Moisala, Terhi
Other Authors: Matemaattis-luonnontieteellinen tiedekunta, Faculty of Sciences, Matematiikan ja tilastotieteen laitos, Department of Mathematics and Statistics, University of Jyväskylä, Jyväskylän yliopisto
Format: Master's thesis
Language:eng
Published: 2016
Subjects:
Online Access: https://jyx.jyu.fi/handle/123456789/49211
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author Moisala, Terhi
author2 Matemaattis-luonnontieteellinen tiedekunta Faculty of Sciences Matematiikan ja tilastotieteen laitos Department of Mathematics and Statistics University of Jyväskylä Jyväskylän yliopisto
author_facet Moisala, Terhi Matemaattis-luonnontieteellinen tiedekunta Faculty of Sciences Matematiikan ja tilastotieteen laitos Department of Mathematics and Statistics University of Jyväskylä Jyväskylän yliopisto Moisala, Terhi Matemaattis-luonnontieteellinen tiedekunta Faculty of Sciences Matematiikan ja tilastotieteen laitos Department of Mathematics and Statistics University of Jyväskylä Jyväskylän yliopisto
author_sort Moisala, Terhi
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description Todistamme tässä työssä Poincarén dualiteetin Euklidisten avaruuksien avoimille joukoille. Annamme lyhyen johdatuksen differentiaaligeometriaan ja määrittelemme de Rham -kohomologian käsitteen. Itse Poincarén dualiteetin todistuksen aloitamme muutamalla aputuloksella. Näytämme ensin, että Poincarén dualiteetti pätee joukoille, jotka ovat diffeomorfisia avaruuteen R^n . Todis- tamme sitten Poincarén dualiteetin avointen joukkojen yhdisteille erinäisten lisäoletusten vallitessa. Tätä varten esittelemme Mayer–Vietoris jonon de Rham -kohomologialle. Lopulta näytämme Poincarén dualiteetin mielivaltaiselle avoimelle joukolle käytten Whitney-jakoa. Annamme myös havainnollistavan esimerkin Poincarén dualiteetista punkteeratussa tasossa. In this thesis we prove the Poincaré duality for open sets in Euclidean spaces. We start with a brief introduction to differential geometry and introduce then the de Rham cohomology. The actual proof begins with some auxiliary results. We prove first the Poincaré duality for sets that are diffeomorphic to R^n . We then introduce the Mayer–Vietoris sequence for de Rham cohomology and show that the Poincaré duality holds for unions of open sets with some additional assumptions. Finally we prove the Poincaré duality for an arbitrary open set using the Whitney decomposition. We give also an illustrative example of the Poincaré duality in the punctured plane.
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spellingShingle Moisala, Terhi Poincaré duality for open sets in Euclidean spaces Matematiikka Mathematics 4041 differentiaaligeometria euklidinen geometria
title Poincaré duality for open sets in Euclidean spaces
title_full Poincaré duality for open sets in Euclidean spaces
title_fullStr Poincaré duality for open sets in Euclidean spaces Poincaré duality for open sets in Euclidean spaces
title_full_unstemmed Poincaré duality for open sets in Euclidean spaces Poincaré duality for open sets in Euclidean spaces
title_short Poincaré duality for open sets in Euclidean spaces
title_sort poincaré duality for open sets in euclidean spaces
title_txtP Poincaré duality for open sets in Euclidean spaces
topic Matematiikka Mathematics 4041 differentiaaligeometria euklidinen geometria
topic_facet 4041 Matematiikka Mathematics differentiaaligeometria euklidinen geometria
url https://jyx.jyu.fi/handle/123456789/49211 http://www.urn.fi/URN:NBN:fi:jyu-201603301961
work_keys_str_mv AT moisalaterhi poincaredualityforopensetsineuclideanspaces