Sökning: "maxwell s equations"

Hittade 3 avhandlingar innehållade orden maxwell s equations.

1. 1. Homogenization of some linear and nonlinear partial differential equations

   Författare :Niklas Wellander; Luleå tekniska universitet; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Mathematics; Matematik;

   Sammanfattning : In this thesis is studied two-scale convergence for sequences of linear and nonlinear evolution problems. In particular homogenization procedures, correctors and a numerical algorithm for such problems are studied. The main results are the following: We prove a crucial compactness results of two-scale convergence type. LÄS MER

3. 2. Some Problems in Kinetic Theory and Applications

   Författare :Åsa Windfäll; Alexander Bobylev; Giampiero Spiga; Karlstads universitet; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Matematik; Mathematics;

   Sammanfattning : This thesis consists of four papers. the first is devoted to discrete velocity models, the second to hydrodynamic equation beyond Navier-Stokes level, the third to a multi-linear Maxwell model for economic or social dynamics and the fourth is devoted to a function related to the Riemann zeta-function. LÄS MER

4. 3. Absorbing Layers and Non-Reflecting Boundary Conditions for Wave Propagation Problems

   Författare :Daniel Appelö; Prof. Gunilla Kreiss; Eliane Becache; KTH; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; PML; perfectly matched layer; Numerical analysis; Numerisk analys;

   Sammanfattning : The presence of wave motion is the defining feature in many fields of application,such as electro-magnetics, seismics, acoustics, aerodynamics,oceanography and optics. In these fields, accurate numerical simulation of wave phenomena is important for the enhanced understanding of basic phenomenon, but also in design and development of various engineering applications. LÄS MER