Rational Approximation on Exponential Meshes
نویسندگان
چکیده
منابع مشابه
On Analysis of Projection Methods for Rational Function Approximation to the Matrix Exponential
Krylov subspace methods for approximating the action of the matrix exponential exp(A) on a vector v are analyzed with A Hermitian and negative semidefinite. Our approach is based on approximating the exponential with the commonly employed diagonal Padé and Chebyshev rational functions, which yield a system of equations with a polynomial coefficient matrix. We derive optimality properties and er...
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ژورنال
عنوان ژورنال: Symmetry
سال: 2020
ISSN: 2073-8994
DOI: 10.3390/sym12121999