Search for dissertations about: "matrices mathematics"

Showing result 11 - 15 of 128 swedish dissertations containing the words matrices mathematics.

  2. 11. Gaussian fluctuations in some determinantal processes

    Author : Jonas Hägg; Kurt Johansson; Alexander Soshnikov; KTH; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; Random matrices; limit theorems; MATHEMATICS; MATEMATIK;

    Abstract : This thesis consists of two parts, Papers A and B, in which some stochastic processes, originating from random matrix theory (RMT), are studied. In the first paper we study the fluctuations of the kth largest eigenvalue, xk, of the Gaussian unitary ensemble (GUE). READ MORE

  4. 12. The concept concept in mathematics education : A concept analysis

    Author : Lotta Wedman; Högskolan Dalarna; []
    Keywords : SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; concept; mathematical concepts; concept analysis; co nceptual analysis; mathematics education; concept image; conception; schema; Utbildning och lärande; Education and Learning; concept; mathematical concepts; concept analysis; conceptual analysis; mathematics education; concept image; conception; schema;

    Abstract : The notion concept is used in different ways within the field of mathematics education. The aim of this study is to carry out a concept analysis of the notion concept, within some frequently used frameworks describing conceptual understanding. READ MORE

  5. 13. Combinatorics of solvable lattice models with a reflecting end

    Author : Linnea Hietala; Göteborgs universitet; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; mathematics; mathematical physics; six-vertex model; eight-vertex SOS model; three-color model; reflecting end; domain wall boundary conditions; partition function; determinant formula; XYZ spin chain; alternating sign matrices; special polynomials; positive coefficients;

    Abstract : I den här avhandlingen studerar vi några exakt lösbara, kvantintegrerbara gittermodeller. Izergin bevisade en determinantformel för partitionsfunktionen till sexvertexmodellen på ett gitter av storlek n × n med Korepins domänväggrandvillkor (domain wall boundary conditions – DWBC). READ MORE

  6. 14. Matrix-Less Methods for Computing Eigenvalues of Large Structured Matrices

    Author : Sven-Erik Ekström; Maya Neytcheva; Stefano Serra-Capizzano; Carlo Garoni; Lothar Reichel; Uppsala universitet; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; Toeplitz matrices; eigenvalues; eigenvalue asymptotics; polynomial interpolation; extrapolation; generating function and spectral symbol; Beräkningsvetenskap med inriktning mot numerisk analys; Scientific Computing with specialization in Numerical Analysis;

    Abstract : When modeling natural phenomena with linear partial differential equations, the discretized system of equations is in general represented by a matrix. To solve or analyze these systems, we are often interested in the spectral behavior of these matrices. READ MORE

  7. 15. Subspace Computations via Matrix Decompositions and Geometric Optimization

    Author : Lennart Simonsson; Axel Ruhe; Linköpings universitet; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; Mathematics; Numerical Analysis; Rank-revealing UTV; Jacobi-Davidson algorithm; Decomposition; Grassmann type algorithms; Numerical analysis; Numerisk analys;

    Abstract : This thesis is concerned with the computation of certain subspaces connected to a given matrix, where the closely related problem of approximating the matrix with one of lower rank is given special attention. To determine the rank and obtain bases for fundamental subspaces such as the range and null space of a matrix, computing the singular value decomposition (SVD) is the standard method. READ MORE