Search for dissertations about: "L-functions"

Found 4 swedish dissertations containing the word L-functions.

  2. 1. Limit Theorems for Lattices and L-functions

    Author : Kristian Holm; Göteborgs universitet; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; Lattices; L-functions;

    Abstract : This PhD thesis investigates distributional questions related to three types of objects: Unimodular lattices, symplectic lattices, and Hecke L-functions of imaginary quadratic number fields of class number 1. In Paper I, we follow Södergren and examine the asymptotic joint distribution of a collection of random variables arising as geometric attributes of the N = N(n) shortest non-zero lattice vectors (up to sign) in a random unimodular lattice in n-dimensional Euclidean space, as the dimension n tends to infinity: Normalizations of the lengths of these vectors, and normalizations of the angles between them. READ MORE

  4. 2. Computing Vector-valued Modular Forms of Congruence Types and of Some Extension Types

    Author : Tobias Magnusson; Chalmers tekniska högskola; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; eisenstein series; modular forms; iterated eichler-shimura integrals; vector-valued modular forms;

    Abstract : This thesis explores applications of vector-valued modular forms of congruence and extension types to scalar-valued modular forms for congruence subgroups with a character, higher order modular forms, and iterated Eichler-Shimura integrals of depth one and two, including considerable generalizations thereof. In \textsc{Paper I} (co-authored with Martin Raum), we present an algorithm for computing bases for spaces of vector-valued modular forms of congruence type and of weight at least $2$ in terms of products of components of vector-valued Eisenstein series. READ MORE

  5. 3. Differentiation factor Fms-like tyrosine kinase 3 ligand is a modulator of cell responses in autoimmune diseases

    Author : Mats Dehlin; Göteborgs universitet; []
    Keywords : MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; Flt3-L; rheumatoid arthritis; primary Sjögren s syndrome;

    Abstract : Fms-like tyrosine kinase 3 (Flt3) is a receptor on common stem cell progenitors and has a crucial role in hematopoesis, regulating cell proliferation and differentiation in man and mice. The growth factor Flt3 is activated by its soluble ligand, Flt3-L, leading to differentiation of multipotent stem cells and lymphoid progenitors. READ MORE

  6. 4. Modulation of cellular and viral functions in Epstein-Barr virus infected cells

    Author : Marta P Imreh; Karolinska Institutet; Karolinska Institutet; []
    Keywords : ;

    Abstract : The aim of the study was to investigate the interplay of cellular and viral genes in Epstein-Barr virus (EBV) infected cells. Two aspects of this interaction have been investigated. The first aspect is related to the expression of major histocompatibility complex (MHC) class I molecules in virus infected malignant cells. READ MORE