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  • About
  • The Global ETD Search service is a free service for researchers to find electronic theses and dissertations. This service is provided by the Networked Digital Library of Theses and Dissertations.
    Our metadata is collected from universities around the world. If you manage a university/consortium/country archive and want to be added, details can be found on the NDLTD website.
1

Kommutativitet i en Ore-utvidgning över en polynomring

Klinga, Viktor January 2019 (has links)
I denna uppsats studerar vi kommutativitet i polynomringar i en variabel med icke-kommutativ multiplikation över en domän, så kallade Ore-utvidgningar. Vi Ore-utvidgar en polynomring i en variabel med koefficienter tillhörande en kropp. Vi studerar centralisatorer i denna Ore-utvidgning. Centralisatorn av ett icke-konstant element visar sig vara kommutativa och fria moduler. Vi undersöker även när centralisatorerna som en algebra är genererade av ett element. Några nya exempel av sådana centralisatorer presenteras. Vi undersöker också en ny metod för att bestämma om centralisatorn som en algebra är genererad av ett element. / In this thesis, we study commutativity in polynomial rings in one variable with noncommutative multiplication over a domain, which is called Ore extensions. We look at the Ore extension of a polynomial ring in one variable with coefficients belonging to a field. We study centralizers in this Ore extension. The centralizer of a nonconstant element turns out to be commutative and a free module. We also investigate when the centralizers as an algebra are generated by one element. Some new examples of such centralizers are presented. We also look into a new method to determine if the centralizers as an algebra are generated by one element.

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