Search for dissertations about: "Number Theory"

Showing result 1 - 5 of 1205 swedish dissertations containing the words Number Theory.

  1. 1. Aspects of Yang-Mills Theory Solitons, Dualities and Spin Chains

    University dissertation from Uppsala : Acta Universitatis Upsaliensis

    Author : Lisa Freyhult; Uppsala universitet.; [2004]
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; Theoretical physics; Theoretical Physics; Field theory; String theory; Yang-Mills; Effective models; Supersymmetry; Solitons; Fermion number; Duality; AdS CFT correspondence; Bethe ansatz; Teoretisk fysik; NATURAL SCIENCES Physics; NATURVETENSKAP Fysik;

    Abstract : One of the still big problems in the Standard Model of particle physics is the problem of confinement. Quarks or other coloured particles have never been observed in isolation. Quarks are only observed in colour neutral bound states. The strong interactions are described using a Yang-Mills theory. READ MORE

  2. 2. Geometry and Critical Configurations of Multiple Views

    University dissertation from Fredrik Kahl, Centre for Mathematical Sciences, P.O. Box 118, SE-221 00 Lund, Sweden

    Author : Fredrik Kahl; Lunds universitet.; Lund University.; [2001]
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; algebra; algebraic geometry; field theory; Number Theory; Matematik; Mathematics; reconstruction; image sequence; absolute conic; critical motions; critical surfaces; perspective projection; affine geometry; Euclidean geometry; multiple view geometry; projective geometry; group theory; Talteori; fältteori; algebraisk geometri; gruppteori; Mathematical logic; set theory; combinatories; Matematisk logik; mängdlära; kombinatorik;

    Abstract : This thesis is concerned with one of the core problems in computer vision, namely to reconstruct a real world scene from several images of it. The interplay between the geometry of the scene, the cameras and the images is analyzed. READ MORE

  3. 3. Future generations A challenge for moral theory

    University dissertation from Uppsala : Acta Universitatis Upsaliensis

    Author : Gustaf Arrhenius; Uppsala universitet.; [2000]
    Keywords : HUMANIORA; HUMANITIES; Philosophy; future generations; population theory; population ethics; axiology; welfare; moral theory; social choice theory; impossibility theorems; Filosofi; HUMANITIES and RELIGION History and philosophy subjects Philosophy subjects Practical philosophy; HUMANIORA och RELIGIONSVETENSKAP Historisk-filosofiska ämnen Filosofiämnen Praktisk filosofi; Practical Philosophy; Praktisk filosofi;

    Abstract : For the last thirty years or so, there has been a search underway for a theory that canaccommodate our intuitions in regard to moral duties to future generations. The object ofthis search has proved surprisingly elusive. The classical moral theories in the literature allhave perplexing implications in this area. READ MORE

  4. 4. Problems in Number Theory related to Mathematical Physics

    University dissertation from Stockholm : KTH

    Author : Rikard Olofsson; KTH.; [2008]
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; number theory; mathetical physics; local zeta functions; cat maps; Beurling primes; MATHEMATICS; MATEMATIK;

    Abstract : This thesis consists of an introduction and four papers. All four papers are devoted to problems in Number Theory. In Paper I, a special class of local ζ-functions is studied. The main theorem states that the functions have all zeros on the line Re(s)=1/2. READ MORE

  5. 5. Quasi-Lie Algebras and Quasi-Deformations. Algebraic Structures Associated with Twisted Derivations

    University dissertation from Department of Mathematics, Lund University

    Author : Daniel Larsson; Lunds universitet.; Lund University.; [2006]
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; Talteori; fältteori; algebraisk geometri; algebra; gruppteori; Lie Algebras; Quasi-Deformations; Number Theory; field theory; algebraic geometry; group theory; Quasi-Lie Algebras;

    Abstract : This thesis introduces a new deformation scheme for Lie algebras, which we refer to as ?quasi-deformations? to clearly distinguish it from the classical Grothendieck-Schlessinger and Gers-tenhaber deformation schemes. The main difference is that quasi-deformations are not in gene-ral category-preserving, i.e. READ MORE