Sökning: "Representation theory"

Visar resultat 21 - 25 av 449 avhandlingar innehållade orden Representation theory.

1. 21. Topics in perturbation theory : From IBP identities to integrands

   Författare :Alessandro Georgoudis; Joseph A. Minahan; Tristan McLoughlin; Uppsala universitet; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Perturbation theory; Feynman Integrals; Integrable field theories; Correlation functions.; Theoretical Physics; Teoretisk fysik;

   Sammanfattning : In this thesis we present different topics in perturbation theory. We start by introducing the method of integration by parts identities, which reduces a generic Feynman integral to a linear combination of a finite basis of master integrals. LÄS MER

3. 22. Representation theorems for abelian and model categories

   Författare :Anna Giulia Montaruli; Peter LeFanu Lumsdaine; Gregory Arone; Marek Zawadowski; Stockholms universitet; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Category Theory; Logic; Algebra; Homotopy Theory; matematik; Mathematics;

   Sammanfattning : In this PhD thesis we investigate a representation theorem for small abelian categories and a representation theorem for left proper, enriched model categories, with the purpose of describing them concretely in terms of specific well-known categories.For the abelian case, we study the constructivity issues of the Freyd-Mitchell Embedding Theorem, which states the existence of a full embedding from a small abelian category into the category of modules over an appropriate ring. LÄS MER

4. 23. Taming the Erratic : Representation and materialization in post-digital architectural design

   Författare :Daniel Norell; Timothy Anstey; Ulrika Karlsson; Fredrik Nilsson; Claus Peder Pedersen; KTH; []
   Nyckelord :HUMANIORA; HUMANITIES; Representation; Materialization; Post-digital; Material simulation; Chunk; Arkitektur; Architecture;

   Sammanfattning : This thesis investigates materialization and representation in contemporary architectural design practice. Due to cultural and technological shifts, the act of design is no longer squarely located in the abstract realms of drawings or digital geometries. LÄS MER

5. 24. Exercising Mathematical Competence: Practising Representation Theory and Representing Mathematical Practice

   Författare :Anna Ida Säfström; Göteborgs universitet; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; Mathematical competence; exercising competencies; young children; whole number arithmetic; tertiary level; proving; highest weight representation; tensor product decomposition; skew-symmetric matrix; moment map; infinite dimensional unitary representation; highest weight representation;

   Sammanfattning : This thesis assembles two papers in mathematics and two papers in mathematics education. In the mathematics part, representation theory is practised. Two Clebsch-Gordan type problems are addressed. LÄS MER

7. 25. The Art of Making Democratic Trouble : Four Art Events and Radical Democratic Theory

   Författare :Elín Hafsteinsdóttir; Cecilia Åse; Charlotte Fridolfsson; Jenny Gunnarsson Payne; Stockholms universitet; []
   Nyckelord :SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; radical democracy; art; event; space of conflict; agonistic democracy; discourse theory; post-structuralist theory; Chantal Mouffe; Aletta Norval; Sweden; the Netherlands; democratic subjectivity; political subject; politicization; Political Science; statsvetenskap;

   Sammanfattning : Heated debates and strong emotions occasionally arise in the public sphere in the wake of an art object. The interaction that follows becomes part of what we as citizens share in a democracy, with its particular conditions of political speech and democratic exchange. LÄS MER