Sökning: "Lothar Reichel"

Hittade 2 avhandlingar innehållade orden Lothar Reichel.

  1. 1. Some computational aspects of the boundary collocation method for linear partial differential equations and related questions

    Författare :Lothar Reichel; Stockholms universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES;

    Sammanfattning : Many problems of Applied Mathematics can be formulated as linear partial differential equations for which a complete set of particular solutions is explicitly known. Solving these problems by the boundary collocation method means that one seeks an approximate solution in the form of a linear combination of particular solutions. LÄS MER

  2. 2. Matrix-Less Methods for Computing Eigenvalues of Large Structured Matrices

    Författare :Sven-Erik Ekström; Maya Neytcheva; Stefano Serra-Capizzano; Carlo Garoni; Lothar Reichel; Uppsala universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Toeplitz matrices; eigenvalues; eigenvalue asymptotics; polynomial interpolation; extrapolation; generating function and spectral symbol; Beräkningsvetenskap med inriktning mot numerisk analys; Scientific Computing with specialization in Numerical Analysis;

    Sammanfattning : When modeling natural phenomena with linear partial differential equations, the discretized system of equations is in general represented by a matrix. To solve or analyze these systems, we are often interested in the spectral behavior of these matrices. LÄS MER