From cfdc7bd753cb30a2b05ef40c33f65b845c68f2ab Mon Sep 17 00:00:00 2001
From: Thibaut Horel <thibaut.horel@gmail.com>
Date: Mon, 11 Feb 2013 16:43:38 -0800
Subject: Fix matrix convex functions citation

---
 proofs.tex | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

(limited to 'proofs.tex')

diff --git a/proofs.tex b/proofs.tex
index 2cff729..c951175 100644
--- a/proofs.tex
+++ b/proofs.tex
@@ -311,7 +311,7 @@ $A-B$ is positive definite (positive semi-definite).  This order allows us to
 define the notion of a \emph{decreasing} as well as  \emph{convex} matrix
 function, similarly to their real counterparts. With this definition, matrix
 inversion is decreasing and convex over symmetric positive definite
-matrices~\cite{convexmatrix}.
+matrices (see Example 3.48 p. 110 in \cite{boyd2004convex}).
 In particular,
 \begin{gather*}
         \forall S\subseteq\mathcal{N},\quad A(S)^{-1} \succeq A(S\cup\{i\})^{-1}
-- 
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