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20102026
most citedRational approximations to fractional powers of self-adjoint positive operators

31 citations · 85 across the 24 of their papers we have counts for

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math.NA2011

Using the RD rational Arnoldi method for exponential integrators

Paolo Novati

In this paper we investigate some practical aspects concerning the use of the Restricted-Denominator (RD) rational Arnoldi method for the computation of the core functions of expon…

math.NA2011

Preconditioning linear systems via matrix function evaluation

Paolo Novati, Michela Redivo-Zaglia, Maria Rosaria Russo

For the solution of discrete ill-posed problems, in this paper a novel preconditioned iterative method based on the Arnoldi algorithm for matrix functions is presented. The method…