fix minor encoding issues

[[Imported from SVN: r1186]]

doc/istl.tex

@@ -52,7 +52,7 @@
 \author{%
 Peter Bastian, Markus Blatt\\
 Institut f\"ur parallele und verteilte Systeme (IPVS),\\
-Universität Stuttgart, Universit\"atsstr. 38, D-70569 Stuttgart, \\
+Universit\"at Stuttgart, Universit\"atsstr. 38, D-70569 Stuttgart, \\
 email: \texttt{Peter.Bastian@ipvs.uni-stuttgart.de}, \texttt{Markus.Blatt@ipvs.uni-stuttgart.de}}
 
 \date{\today}
@@ -805,7 +805,7 @@ operation ($x = y + \alpha z$) in Tables
         \hline
         \hline
       \end{tabular}}
-    \subtable[Damped Gauß\ss{}-Seidel]{\label{tab:perf_gs}
+    \subtable[Damped Gau\ss{}--Seidel]{\label{tab:perf_gs}
       \begin{tabular}{rrr}
           \hline
           \hline
@@ -829,7 +829,7 @@ bandwith. Table \ref{tab:perf_mvp} shows that we take advantage of
 cache reusage for matrices of dense blocks with block size $b>1$.
 In Table
 \ref{tab:perf_gs} we compared the generic implementation of
-the Gauss Seidel solver in ISTL with a specialized C
+the Gau\ss{}--Seidel solver in ISTL with a specialized C
 implementation. The measured times per iteration show that there is
 now lack of computational efficiency due to the generic implementation.