Search for dissertations about: "harmonic"

Showing result 1 - 5 of 450 swedish dissertations containing the word harmonic.

  2. 1. Harmonic measures

    Author : Jonatan Vasilis; Göteborgs universitet; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; harmonic measure; square root of the Poisson kernel; Hardy space; p-Laplace operator; random walk; regular tree; discrete minimal thinness; Hardy space;

    Abstract : This thesis uses both analytic and probabilistic methods to study continuous and discrete problems. The main areas of study are the asymptotic properties of p-harmonic measure, and various aspects of the square root of the Poisson kernel. Fix a domain and a boundary point, subject to certain regularity conditions. READ MORE

  4. 2. On harmonic distortion in power systems

    Author : Johan Lundquist; Chalmers tekniska högskola; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; converters; power sustem monitoring; harmonic distortion; losses; voltage notching; drives; harmonic filter; unbalance; harmonic propagation; resonance; rectifiers; power quality; active power;

    Abstract : .... READ MORE

  5. 3. On the Benefit of Harmonic Measurements in Power Systems

    Author : Erik Thunberg; KTH; []
    Keywords : Power Quality; Power System Harmonics; Harmonic Distortion; Harmonic Measurement; Harmonic Analysis; Power Distribution;

    Abstract : .... READ MORE

  6. 4. Harmonic morphisms, Hermitian structures and symmetric spaces

    Author : Martin Svensson; Matematik (naturvetenskapliga fakulteten); []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; isotropic subbundles; conformal foliations; holomorphic maps; harmonic morphism;

    Abstract : A harmonic morphism is a map between two Riemannian manifolds with the property that its composition with a local harmonic function on the codomain is a local harmonic function on the domain. Such a map is automatically a harmonic map, satisfying an additional partial conformality condition called horizontal (weak) conformality. READ MORE

  7. 5. On the existence of complex-valued harmonic morphisms

    Author : Jonas Nordström; Matematik (naturvetenskapliga fakulteten); []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; Harmonic morphisms; foliations; minimal submanifolds; Lie groups;

    Abstract : This thesis consists of 4 papers, their content is described below: Paper I. We present a new method for manufacturing complex-valued harmonic morphisms from a wide class of Riemannian Lie groups. This yields new solutions from an important family of homogeneous Hadamard manifolds. READ MORE