Search for dissertations about: "Series"
Showing result 11 - 15 of 6210 swedish dissertations containing the word Series.
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11. Around minimal Hilbert series problems for graded algebras
Abstract : The Hilbert series of a graded algebra is an invariant that encodes the dimension of the algebra's graded compontents. It can be seen as a tool for measuring the size of a graded algebra. This gives rise to the idea of algebras with a "minimal Hilbert series", among the algebras within a certain family. READ MORE
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12. Data mining for prediction - financial series case
Abstract : Hard problems force innovative approaches and attention todetail, their exploration often contributing beyond the areainitially attempted. This thesis investigates the data miningprocess resulting in a predictor for numerical series.Theseries experimented with come from financial data - usuallyhard to forecast. READ MORE
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13. Tangential Derivations, Hilbert Series and Modules over Lie Algebroids
Abstract : Let A/k be a local commutative algebra over a field k of characteristic 0, and T_{A/k} be the module of k-linear derivations on A. We study, in two papers, the set of k-linear derivations on A which are tangential to an ideal I of A (preserves I), defining an A-submodule T_{A/k}(I) of T_{A/k}, which moreover is a k-Lie subalgebra. READ MORE
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14. Energy Management Strategy Design for Series Hybrid Electric Vehicles
Abstract : Electrification of vehicles is an indispensable step in improving fuel economy and reducing fossil fuel emissions. In particular, hybrid electric vehicle market has gained popularity as one such reliable solution. READ MORE
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15. Searching for causal effects of road traffic safety interventions : applications of the interrupted time series design
Abstract : Traffic-related injuries represent a global public health problem, and contribute largely to mortality and years lived with disability worldwide. Over the course of the last decades, improvements to road traffic safety and injury surveillance systems have resulted in a shift in focus from the prevention of motor vehicle accidents to the control of injury events involving vulnerable road users (VRUs), such as cyclists and moped riders. READ MORE