diff --git a/src/math/mathop.pysty b/src/math/mathop.pysty
index 0c5c3b1..5f537e1 100644
--- a/src/math/mathop.pysty
+++ b/src/math/mathop.pysty
@@ -83,6 +83,9 @@ __END_OPTIONS_X__
 
 %Algebra
 \DeclareSimpleMathOperator{Quot}
+\DeclareSimpleMathOperator{rad}
+\DeclareSimpleMathOperator{Spec}
+\DeclareSimpleMathOperator{Frac}
 \DeclareSimpleMathOperator{Gal}
 \DeclareSimpleMathOperator{Ext}
 \DeclareSimpleMathOperator{Tor}
@@ -90,9 +93,9 @@ __END_OPTIONS_X__
 \DeclareSimpleMathOperator{Sh}
 \DeclareSimpleMathOperator{Proj}
 \DeclareSimpleMathOperator{QCoh}
-\DeclareSimpleMathOperator{MaxSpec}
 \DeclareSimpleMathOperator{Fun}
 \DeclareMathOperator{\Nil}{\mathcal{N}il}
+\DeclareMathOperator{\Ouv}{\mathcal{O}uv}
 \DeclareMathOperator{\PreSh}{Pre-Sh}
 \newcommand{\tensor}{\otimes} %Synonym for tensoring
 
@@ -136,10 +139,15 @@ __END_OPTIONS_X__
 \DeclareCategory{Grp}
 \DeclareCategory{Ab}
 \DeclareCategory{CRing}
+\DeclareCategory{Ring}
 \DeclareCategory{Vect}
 \DeclareCategory{Fin}
 \DeclareCategory{Ab}
 \DeclareCategory{Cat}
+\DeclareCategory{Mod}
+\DeclareCategory{AffVar}
+\DeclareCategory{Alg}
+\DeclareCategory{Field}
 
 %Set theory
 \DeclareSimpleMathOperator{card}