Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Simultaneous preconditioning and symmetrization of non-symmetric linear
  systems   Motivated by the theory of self-duality which provides a variational
formulation and resolution for non self-adjoint partial differential equations
\cite{G1, G2}, we propose new templates for solving large non-symmetric linear
systems. The method consists of combining a new scheme that simultaneously
preconditions and symmetrizes the problem, with various well known iterative
methods for solving linear and symmetric problems. The approach seems to be
efficient when dealing with certain ill-conditioned, and highly non-symmetric
systems.

31
The categories of this paper are: ao-sci
1
The categories of this paper are: cs
29
The categories of this paper are: funct-an
3
The categories of this paper are: physics
13
The categories of this paper are: quant-ph
10
The categories of this paper are: q-bio
33
The categories of this paper are: plasm-ph
37
The categories of this paper are: supr-con
14
The categories of this paper are: math-ph
34
The categories of this paper are: chem-ph
11
The categories of this paper are: hep-lat
24
The categories of this paper are: dg-ga
35
The categories of this paper are: mtrl-th
36
The categories of this paper are: cmp-lg
22
The categories of this paper are: chao-dyn
26
The categories of this paper are: bayes-an