diff --git a/src/math/mathop.pysty b/src/math/mathop.pysty
index 2f23187..26fdf45 100644
--- a/src/math/mathop.pysty
+++ b/src/math/mathop.pysty
@@ -151,6 +151,7 @@ __END_OPTIONS_X__
 \DeclareCategory{AffVar}
 \DeclareCategory{Alg}
 \DeclareCategory{Field}
+\DeclareCategory{Sch}
 
 %Set theory
 \DeclareSimpleMathOperator{card}
@@ -169,6 +170,19 @@ __END_OPTIONS_X__
 \DeclareSimpleMathOperator{cov}
 \newcommand{\del}{\partial} % Semantically correct operator for boundary maps
 
+%% Algebraic geometry
+\DeclareSimpleMathOperator{eq}
+\DeclareSimpleMathOperator{Idem}
+\DeclareSimpleMathOperator{Supp}
+\DeclareSimpleMathOperator{Ann}
+\DeclareSimpleMathOperator{OC}
+\DeclareSimpleMathOperator{red}
+\DeclareSimpleMathOperator{can}
+\DeclareSimpleMathOperator{Pic}
+
+\newcommand\leftadjoint\vdash
+\newcommand\rightadjoint\dashv
+
 % Characteristic function
 \newcommand*{\cfun}{\ensuremath{\mathbbm{1}}}
 \newcommand*{\One}{\cfun}