fix wrong symbol

contents/coarse.tex

@@ -1145,7 +1145,7 @@ This is then referred to as the \emph{coarse} Baum--Connes assembly map by \text
 For $X= G$ we are in the setting of \cref{thm:equiv_roe_alg_group_cstar}, where the \K-theory of the Roe algebra can be identified with the \K-theory of the reduced group \Cstar-algebra.
 The Baum--Connes assembly map than has the form
 \[
-	\mu \colon \KX_*^G(G) \To{} \K_* \enbrace*{\Cstar_\mu(G)}
+	\mu \colon \KX_*^G(G) \To{} \K_* \enbrace*{\Cstar_\rho(G)}
 \]
 and we say, that $G$ satisfies the Baum--Connes conjecture, if this map is an isomorphism.