Search for dissertations about: "Mat"

Showing result 21 - 25 of 432 swedish dissertations containing the word Mat.

  2. 21. Inference in Temporal Graphical Models

    Author : Jonas Hallgren; Timo Koski; Dubhashi Devdatt; KTH; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; Tillämpad matematik och beräkningsmatematik; Applied and Computational Mathematics;

    Abstract : This thesis develops mathematical tools used to model and forecast different economic phenomena. The primary starting point is the temporal graphical model. Four main topics, all with applications in finance, are studied. READ MORE

  4. 22. The space of Cohen–Macaulay curves and related topics

    Author : Katharina Heinrich; Roy Skjelnes; Ragni Piene; KTH; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; Mathematics; Matematik;

    Abstract : The space of Cohen–Macaulay curves is a compactification of the space of curves that are embedded in a given projective space Pn. The idea is similar to that of the Hilbert scheme but instead of adding degenerated curves, one considers only curves without embedded or isolated points. READ MORE

  5. 23. On various aspects of extended objects

    Author : Mariusz Hynek; Jens Hoppe; Volker Bach; KTH; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; Mathematics; Matematik;

    Abstract : This thesis concerns classical and quantum aspects of minimal manifolds embedded in flat Minkowski space. In particular, we study the Lie algebra of diffeomorphisms on 2 dimensional compact manifolds as well as discuss singularity formation for relativistic minimal surfaces in co-dimension one. READ MORE

  6. 24. On estimates of constants for maximal functions

    Author : Alexander Iakovlev; Jan-Ofov Strömberg; Tuomas Hytönen; KTH; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; maximal function; harmonic analysis;

    Abstract : In this work we will study Hardy-Littlewood maximal function and maximal operator, basing on both classical and most up to date works. In the first chapter we will give definitions for different types of those objects and consider some of their most important properties. READ MORE

  7. 25. Error Estimation and Adaptive Methods for Molecular Dynamics

    Author : Ashraful Kadir; Anders Szepessy; Emanuel Rubensson; KTH; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES;

    Abstract : This  thesis consists of two  papers that  concern error estimates for the Born-Oppenheimer molecular dynamics, and adaptive algorithms for the Car-Parrinello and Ehrenfest molecular dynamics. In Paper I, we study error estimates for Born-Oppenheimer molecular dynamics with  nearly crossing potential  surfaces. READ MORE