Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Using the RD rational Arnoldi method for exponential integrators   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 exponential integrators for parabolic problems. We derive
some useful a-posteriori bounds together with some hints for a suitable
implementation inside the integrators. Numerical ex- periments arising from the
discretization of sectorial operators are pre- sented.

32
The categories of this paper are: atom-ph
9
The categories of this paper are: nlin
14
The categories of this paper are: math-ph
8
The categories of this paper are: hep-ex
22
The categories of this paper are: chao-dyn
36
The categories of this paper are: cmp-lg
16
The categories of this paper are: stat
26
The categories of this paper are: bayes-an
24
The categories of this paper are: dg-ga
17
The categories of this paper are: q-fin
21
The categories of this paper are: adap-org
1
The categories of this paper are: cs
33
The categories of this paper are: plasm-ph
31
The categories of this paper are: ao-sci
13
The categories of this paper are: quant-ph
3
The categories of this paper are: physics