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Minor modifications in the user's guide

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Daniela di Serafino
2017-10-02 15:37:52 +02:00
parent 635a0229c0
commit 58ec101e16
2 changed files with 24 additions and 24 deletions
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docs/mld2p4-2.1-guide.pdf
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docs/src/background.tex
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@@ -61,10 +61,10 @@ linear system
Ax=b, \label{eq:system}
\end{equation}
where $A=(a_{ij}) \in \mathbb{R}^{n \times n}$ is a nonsingular sparse matrix;
for ease of presentation we assume $A$ is real, but the
results are valid for the complex case as well.
for ease of presentation we assume $A$ has a symmetric sparsity
pattern.
Let us assume as finest index space the set of row (column) indices of $A$, i.e.,
Let us consider as finest index space the set of row (column) indices of $A$, i.e.,
$\Omega = \{1, 2, \ldots, n\}$.
Any algebraic multilevel preconditioners implemented in MLD2P4 generates
a hierarchy of index spaces and a corresponding hierarchy of matrices,