Sökning: "certain"

Visar resultat 31 - 35 av 6418 avhandlingar innehållade ordet certain.

  1. 31. Bound-state calculations for certain model potentials by means of a phase-integral method

    Författare :Bo Thidé; Uppsala universitet; []
    Nyckelord :NATURAL SCIENCES; NATURVETENSKAP;

    Sammanfattning : .... LÄS MER

  3. 32. Studies of some Operators of Harmonic Analysis in certain Function Spaces with Applications to PDEs

    Författare :Staffan Lundberg; Norway Narvik UiT The Arctic University of Norway Department of Computer Science and Computational Engineering Faculty of Science and Technology; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Operators; Hardy Operators; Potential Operators; Singular Operators; Function Spaces; Morrey Spaces; H¨older Spaces; Partial Differential Equations; Inequalities; Hardy Type Inequalities; Weights; Applications; Matematik; Mathematics;

    Sammanfattning : The study in this PhD thesis aims at development of certain mathematical methods used in applications, in particular, in the study of regularity properties of solutions in various mathematical models described by Partial Differential Equations (PDEs). To this end, we study various operators of harmonic analysis in certain function spaces, since solutions to many PDEs may be expressed in terms of such operators. LÄS MER

  4. 33. Studies on the chromosomes of certain insects with special reference to the effect of drugs

    Författare :Pushpa Shrivastav; Bhopal University; []
    Nyckelord :;

    Sammanfattning : .... LÄS MER

  5. 34. Hangover Effects of Alcohol and Carry-over Effects of Certain Benzodiazepine Hypnotics on Driving Performance

    Författare :Jan Törnros; Uppsala universitet; []
    Nyckelord :SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; Psychology; Alcohol; Hangover; Hypnotics; Benzodiazepines; Driving performance; Simulation; Psykologi; Psychology; Psykologi; Psychology; psykologi;

    Sammanfattning : The thesis deals with hangover effects of alcohol and carry-over effects of benzodiazepine hypnotics on car driving performance. One study is presented regarding effects of alcohol, and two studies regarding effects of hypnotics. A driving simulator was used in all three studies. Real car driving was used in one of the studies. LÄS MER

  7. 35. Titchmarsh-Weyl M-function asymptotics and some results in the inverse spectral theory for vector-valued Sturm-Liouville equations and a certain higher order ordinary differential equation

    Författare :Erik Andersson; Matematik (naturvetenskapliga fakulteten); []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Functions; differential equations; Funktioner; differentialekvationer; Paley-Wiener.; The generalized Fourier transform; A certain higher order ordinary differential equation; Borg-Marchenko theorems; Vector-valued Sturm-Liouville equations; Inverse spectral theory; Titchmarsh-Weyl M-function asymptotics; Asymptotics of solutions; Spectral measure;

    Sammanfattning : This discourse is constituted by two separate reprots, where the first one offers an elementary deduction of the leading order term asymptotics for the Titchmarsh-Weyl M-function corresponding to a vector-valued Sturm-Liouville equation of the form -(PU')'+QU=zu, xin[0,b), with P^{-1},W,Q being hermitean with locally integrable entries; and under some additional conditions on P^{-1} and W. In the special case of P=W=I, we give some further asymptotic results for the same M-function. LÄS MER