Search for dissertations about: "frame analys"
Showing result 21 - 25 of 60 swedish dissertations containing the words frame analys.
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21. Operators and Inequalities in various Function Spaces and their Applications
Abstract : This Licentiate thesis is devoted to the study of mapping properties of different operators (Hardy type, singular and potential) between various function spaces.The main body of the thesis consists of five papers and an introduction, which puts these papers into a more general frame. READ MORE
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22. Qualitative and Spectral theory of some regular non-definite Sturm-Liouville problems
Abstract : In this Licentiate thesis, we study some regular non-definite Sturm-Liouville problems. In this case, the weight function takes on both positive and negative signs on a given interval [a, b]. One feature of the non-definite Sturm-Liouville problem is the possible existence of non-real eigenvalues, unlike in the definite case (i.e. READ MORE
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23. Weight characterizations of Hardy and Carleman type inequalities
Abstract : This PhD thesis deals with some generalizations of the Hardy and Carleman type inequalities and the relations between them. In Chapter 1 we give an introduction and overview of the area that serves as a frame for the rest of the thesis. READ MORE
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24. Studies of some Operators of Harmonic Analysis in certain Function Spaces with Applications to PDEs
Abstract : 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. READ MORE
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25. A study of Schur multipliers and some Banach spaces of infinite matrices
Abstract : This PhD thesis consists of an introduction and five papers, which deal with some spaces of infinite matrices and Schur multipliers.In the introduction we give an overview of the area that serves as a frame for the rest of the Thesis. READ MORE