Search for dissertations about: "stable variable"

Showing result 1 - 5 of 143 swedish dissertations containing the words stable variable.

  2. 1. Dependence Structures in Stable Mixture Models with an Application to Extreme Precipitation

    Author : Anna Rudvik; Göteborgs universitet; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; multivariate extreme value theory; mixture model; stable variable; dependence measure; mixture model;

    Abstract : In this thesis we study a class of mixture models obtained by mixing extreme value distributions over a positive stable distribution. This depicts a group structure, where the stable distribution is a group specific quantity and a function of the surroundings. The stable mixture models possess a number of interesting characteristics. READ MORE

  4. 2. Living in a Variable Environment : Reproductive Decisions in Wild Bird Populations

    Author : Mårten B. Hjernquist; Lars Gustafsson; Marcel Visser; Uppsala universitet; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; evolutionary ecology; competition; sex allocation; paternity; EPP; inadvertent social information; migration; breeding density; territory quality; territory availability; great tit; blue tit; Ficedula albicollis; Biology; Biologi; Animal Ecology; zooekologi;

    Abstract : In nature, environments are often variable and heterogeneous influencing ecological and evolutionary processes. This thesis focus on how animals interact with their environment and how that affects the reproductive decisions they make. READ MORE

  5. 3. Optimization of confluent jets ventilation with variable airflow

    Author : Harald Andersson; Mathias Cehlin; Roland Gårdhagen; Högskolan i Gävle; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Confluent jets; Air distribution system; Air supply device; Ventilation performance; Indoor air quality; Thermal comfort; Experimental study; Computational fluid dynamics CFD ; Variable air volume.; confluent jets; luftdistributionssystem; tilluftsdon; ventilationsprestanda; inomhusluftkvalitet; termisk komfort; experimentell studie; Computational fluid dynamics CFD ; variabelflödessystem; Hållbar stadsutveckling; Sustainable Urban Development;

    Abstract : In recent years, applications of confluent jets for design of ventilation supply devices have been widely studied. Similarly, numerous studies have been made on the potential and application of variable air volume (VAV) in order to reduce the energy demand of ventilation systems. READ MORE

  6. 4. Nelson-type Limits for α-Stable Lévy Processes

    Author : Haidar Al-Talibi; Astrid Hilbert; Francesco Russo; Linnéuniversitetet; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; Ornstein-Uhlenbeck position process; α-stable Lévy noise; scaling limits; time change; stochastic Newton equations; Mathematical statistics; Matematisk statistik; Applied mathematics; Tillämpad matematik; Mathematics; Matematik;

    Abstract : Brownian motion has met growing interest in mathematics, physics and particularly in finance since it was introduced in the beginning of the twentieth century. Stochastic processes generalizing Brownian motion have influenced many research fields theoretically and practically. READ MORE

  7. 5. Stability theory in finite variable logic

    Author : Marko Djordjevic; Uppsala universitet; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; Mathematics; MATEMATIK; MATHEMATICS; MATEMATIK; Mathematics; Matematik;

    Abstract : This thesis studies finite variable theories. To be more precise. complete Ln -theories, where Ln is the set of formulas in a first order language L in which at most n distinct variables occur. These need not be complete in the usual first order sense. READ MORE