Search for dissertations about: "Matrix models"

Showing result 1 - 5 of 511 swedish dissertations containing the words Matrix models.

  2. 1. Exact Results in Five-Dimensional Gauge Theories : On Supersymmetry, Localization and Matrix Models

    Author : Anton Nedelin; Joseph Minahan; Ivan Kostov; Uppsala universitet; []
    Keywords : NATURAL SCIENCES; NATURVETENSKAP; NATURVETENSKAP; NATURAL SCIENCES; Supersymmetric localization; Matrix Models; Chern-Simons theory; Supersymmetric Field Theories; 2; 0 theories; Theoretical Physics; Teoretisk fysik;

    Abstract : Gauge theories are one of the corner stones of modern theoretical physics. They describe the nature of all fundamental interactions and have been applied in multiple branches of physics. The most challenging problem of gauge theories, which has not been solved yet, is their strong coupling dynamics. READ MORE

  4. 2. Zero-energy states in supersymmetric matrix models

    Author : Douglas Lundholm; Jens Hoppe; Jan Philip Solovej; KTH; []
    Keywords : NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURVETENSKAP; NATURAL SCIENCES; supermembrane matrix models; supersymmetric quantum mechanics; zero-energy states; Clifford algebra; matrix-valued Schrödinger operator; spectral theory; bounds for negative eigenvalues; Algebra; geometry and mathematical analysis; Algebra; geometri och analys; Mathematical physics; Matematisk fysik;

    Abstract : The work of this Ph.D. READ MORE

  5. 3. Supersymmetric Gauge Theories and Matrix Models

    Author : Rainer Heise; Chalmers University of Technology; []
    Keywords : String theory; Effective field theory; Matrix model; Supersymmetric gauge theories;

    Abstract : We discuss recent developments in supersymmetric field theory due to the conjecture of Dijkgraaf and Vafa relating the effective superpotential of such theories to the computation of an associated matrix model. We give a short survey of N=1 supersymmetric gauge theories and state the conjecture. READ MORE

  6. 4. Twisting it up the Quantum Way : On Matrix Models, q-deformations and Supersymmetric Gauge Theories

    Author : Rebecca Lodin; Maxim Zabzine; Taro Kimura; Uppsala universitet; []
    Keywords : NATURAL SCIENCES; NATURVETENSKAP; NATURVETENSKAP; NATURAL SCIENCES; Matrix models; Virasoro constraints; Virasoro algebra; W algebra; q-deformations; Supersymmetric gauge theories; Theoretical Physics; Teoretisk fysik;

    Abstract : The mathematical framework which quantum field theory constitutes has been very successful in describing nature. As an extension of such a framework, the idea of supersymmetry was introduced. This greatly simplified the mathematical description of the theories, making them more tractable. READ MORE

  7. 5. Network models with applications to genomic data: generalization, validation and uncertainty assessment

    Author : José Sánchez; Göteborgs universitet; Göteborgs universitet; Gothenburg University; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; Inverse covariance matrix; precision matrix; graphical models; high-dimension; low-sample; networks; sparsity; fused lasso; elastic net; cancer; TCGA pan cancer analysis; online resource; discriminant analysis; classification; networks;

    Abstract : The aim of this thesis is to provide a framework for the estimation and analysis of transcription networks in human cancer. The methods we develop are applied to data collected by The Cancer Genome Atlas (TCGA) and supporting simulations are based on derived models in order to reflect real data structure. READ MORE