Search for dissertations about: "averages"
Showing result 1 - 5 of 72 swedish dissertations containing the word averages.
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1. Nontypical Behaviour of Orbits and Birkhoff Averages for Expanding Maps
Abstract : This thesis consists of an introductory chapter followed by five papers. In the first paper, expanding maps on the unit interval are considered. The set of points for which the forward orbit is bounded away from a given point is studied. It is shown that this set has full Hausdorff dimension and that it has large intersection properties. READ MORE
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2. Estimates of Bochner-Riesz operators and of averages over hypersurfaces
Abstract : .... READ MORE
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3. Inversion of circular averages and application of backprojection methods to radar imaging
Abstract : In this report we study two mathematical inverse problems concerning the determination of a function from spherical averages, which appear in certain radar applications. The first inverse problem consists of determining a function from its spherical averages over all circles with center on a straight line and with arbitrary radius. READ MORE
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4. Beyond averages – some aspects of how to describe a heterogeneous material, mechanical pulp, on particle level
Abstract : For a more profound understanding of how a process works, it is essential to have a relevant description of the material being processed. With this description, it will be easier to evaluate and control processes to produce more uniform products with the right properties. READ MORE
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5. Radon and its decay products in housing : estimation of the radon daughter exposure to the Swedish population and methods for evaluation of the uncertainties in annual averages
Abstract : Methods have been worked out for evaluation of the uncertainties due to temporal variations in the annual averages for the concentrations of radon-222 (radon) and radon daughters (RnD) indoors. These methods have been applied to the results from long-term measurements of radon in a few houses. READ MORE