THE COMPUTATION OF FUNCTIONS OF MATRICES BY TRUNCATED FABER SERIES
Igor Moret, Paolo Novati · Numerical Functional Analysis and Optimization · 2001
In this paper we consider a method based on Faber polynomials for the approximation of functions of real nonsymmetric matrices. Particular attention is devoted to some functions that occur in practical problem, such as exp (z), . Finally we give some numerical results on a test matrix arising from the discretization of a second order partial differential operator.