Search for dissertations about: "curves and surfaces"

Showing result 1 - 5 of 55 swedish dissertations containing the words curves and surfaces.

  2. 1. Arnold-type invariants of curves and wave fronts on surfaces

    Author : Vladimir Tchernov; Uppsala universitet; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; Mathematics; Immersion of the circle; generic immersion; curves on surfaces; Legendrian immersion; Legendrian knot; wave fronts on surfaces; Whitney index; Maslov index; regular homotopy; perestroikas of plane curves and fronts; Arnold s basic invariants of plane curves and fronts; finite order invariants; Vassiliev invariants; homotopy groups of the space of curves on a surface; MATEMATIK; MATHEMATICS; MATEMATIK; matematik; Mathematics;

    Abstract : This thesis is devoted to the study of invariants of generic curves and wave fronts on surfaces. The invariants J± and St were axiomatically defined by Arnold as numerical characteristics of generic curves (immersions of the circle)on ℝ2 he introduced J± in the case of generic planar wave fronts. READ MORE

  4. 2. Water in and on ionic materials : Structure, energetics, and vibrations

    Author : Getachew Kebede; Kersti Hermansson; Marie-Pierre Gaigeot; Uppsala universitet; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; DFT; dispersion interactions; OH stretching frequency; electric field; dipole moment; Hydrogen bond; ionic surfaces; ionic hydrates;

    Abstract : Many chemical and physical phenomena in nature, in industrial processes, and in our daily lives take place at water/solid interfaces. The aim of this thesis is to further our knowledge of such processes at a molecular level. READ MORE

  5. 3. Counting Rational Points on Curves and Surfaces

    Author : Niklas Broberg; Göteborgs universitet; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; rational point; bounded height; counting function; Batyrev-Manin conjecture; thin set; bounded height;

    Abstract : .... READ MORE

  6. 4. Fracture mechanics and tribology of rock and rock joints

    Author : Sun Zongqi; Luleå tekniska universitet; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Mining and Rock Engineering; Gruv- och Berganläggningsteknik;

    Abstract : In the first part of the thesis fracture toughness tests of rocks are described. Specimens of Stripa Granite have been tested in three point bending, compact tension and short rod tension. READ MORE

  7. 5. Fluorescent Probes and Protein Misfolding: Methods and Applications

    Author : Irem Nasir; Biokemi och Strukturbiologi; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; Protein misfolding; fluorophores; filter-trap; site-specific fluorophore labeling; amyloid-beta; microscopic rate constants; solvatochromic probes; alpha-synuclein; lipid vesicles; nanoparticles; protein adsorption;

    Abstract : Protein misfolding is a frequently occurring event in living cells and without the quality control, the consequences are disasterous. In this thesis, we studied protein misfolding in vitro by employing a variety of fluorophores, to either detect the highly ordered aggregates of intrinsically disordered proteins/peptides or slight misfolding of a natively folded protein. READ MORE