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The Global ETD Search service is a free service for researchers
to find electronic theses and dissertations. This service is
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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.
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Showing 131 to 132 of 132 (0.028 seconds)Spelling suggestions: "subject:"teil"" "subject:"weil""
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Quantum gravity in two- and three-dimensional dS spacesChernichenko, Alexsey January 2024 (has links)
This thesis is a study of certain aspects of quantum gravity in two- and three-dimensional de Sitter spaces. The model used in dS2 is the Jackiw- Tetitelboim gravity which involves a scalar coupling. At low-energy limit this model becomes Schwarzian theory for which one can compute one-loop partition function. Along the way, the model is recasted into the first order formalism which helps to find an appropriate measure for the partition function. The layout for quantum gravity in dS3 is practically the same and many results appear to be quite similar. Although, there are as many dissimilarities. Ultimately, the goal is different, namely to determine one-loop correction to the central charge of the theory dual to dS3 . Additionally, a putative genus expansion for Jackiw-Teitelboim gravity is investigated along with some concrete computations being done. / Detta examensarbete ̈ar en studie av vissa aspekter av kvantgravita-tion i två och tredimensionella de Sitter-rummen. Den behandlar Jackiw-Teitelboim gravitation i dS2 , en model med en skalär koppling. Vid lågenergigränns blir modellen till Schwarzian teorin som används för att beräkna första ordningskorrektionen till partitionsfunktion. På vägen dit skrivs om modelen till första ordningens formalism som sedan hjälper att hitta ett lämpligt mått för partitionsfunktionen. Plannen för dS3 ser ut i princip likadant och en stor del av resultater är liknande. Emellertid finns det lika många olikheter. I slut änden, målet är annorludna, nämligen att beräkna första ordningens korrektion till centrala laddningen av teorin som dual till dS3 . Dessutom, en förmodad genus expansion för Jackiw-Teitelboim gravitation är undersökt och vissa konkreta beräkningar är gjorda.
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Varan-i-världen : Varan i form och innehåll i En dramatikers dagbok / Being-in-capitalism : The commodity in content and form in Diary of a PlaywrightStark Theander, Ellen January 2022 (has links)
This thesis explores the commodity as a motif in the first volume of Lars Norén’s Diary of a Playwright, as well as how this motif relates to reification and alienation, and in addition is reflected in the work formally. The study is oriented both towards the text’s depiction of the commodity and its reflections on its own depiction. These descriptions are read in light of Marxist theory and through comparisons with Walter Benjamin’s Passagenwerk, where the latter work also forms a connection to Martin Heidegger and Simone Weil in their capacity of important influences for Norén. Much like in the Passagenwek, the commodity acts as a secret structure in Diary of a Playwright. It organises the text and its seemingly disparate elements on a deeper level. The study contributes to a new understanding of one the greatest Swedish writers in the 20th and 21st centuries. Although the diary has not been the subject of much research, the predominant understanding of the work is, as with Norén’s other writings, largely characterised by a psychoanalytic perspective.
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