Sökning: "eigenvalue"

Visar resultat 21 - 25 av 121 avhandlingar innehållade ordet eigenvalue.

1. 21. Spectral Asymptotics in Porous Media

   Författare :Hermann Douanla Yonta; Göteborgs universitet; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Homogenization; reiterated homogenization; perforated domains; multiscale perforation; eigenvalue problems; ergodic algebra; algebra with mean value; Gelfand transformation; two-scale convergence; Sigma-convergence; Gelfand transformation;

   Sammanfattning : .... LÄS MER

3. 22. Numerical solutions of the one-speed neutron transport equation in two-medium slabs and spheres

   Författare :Ninos Garis; Chalmers tekniska högskola; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; time-decay constant; eigenvalue spectrum; Carlvik s method; two-medium systems; criticality factor; Neutron transport equation;

   Sammanfattning : .... LÄS MER

4. 23. Some numerical and analytical methods for equations of wave propagation and kinetic theory

   Författare :Eva Mossberg; Alexander Bobylev; Giovanni Russo; Karlstads universitet; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; wave propagation; finite difference metods high order methods; Landau-Fokker-Planck equation; Monte-Carlo simulations; Boltzmann equation; hard sphere model; eigenvalue problem; MATHEMATICS; MATEMATIK; Matematik; Mathematics;

   Sammanfattning : This thesis consists of two different parts, related to two different fields in mathematical physics: wave propagation and kinetic theory of gases. Various mathematical and computational problems for equations from these areas are treated. LÄS MER

5. 24. Eigenvalue analysis and convergence acceleration techniques for summation-by-parts approximations

   Författare :Andrea Alessandro Ruggiu; Jan Nordström; Per Weinerfelt; Daniel Appelö; Linköpings universitet; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES;

   Sammanfattning : Many physical phenomena can be described mathematically by means of partial differential equations. These mathematical formulations are said to be well-posed if a unique solution, bounded by the given data, exists. LÄS MER

7. 25. On nonlinear eigenvalue problems and critical point theory for indefinite functionals

   Författare :Li Yongqing; Stockholms universitet; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Matematisk Analys;

   Sammanfattning : .... LÄS MER