added more commands for STOCH

texmf/tex/latex/mathoperators/mathoperators.sty

@@ -128,6 +128,8 @@
 \newcommand{\sigO}{\mathscr{O}} % sigma algebra of open sets
 \newcommand{\probp}{\mathbb{P}} % probability measure
 \newcommand{\one}{\mathbbm{1}}  % characteristic function
+\newcommand{\borel}{\mathscr{B}} % Borel set
+\newcommand{\sigF}{\mathscr{F}} % typical sigma F for sigma algebra for stochastic lecture
 
 \newcommand{\diff}{\mathrm{d}} % differential d
 \newcommand{\s}{\,\,}     % space after the function in the intergral