ation$$\documentclass[00pt]{minimal}                 \usepackage{amsmath}                 \usepackage{wasysym}                  \usepackage{amsfonts}                  \usepackage{amssymb}                  \usepackage{amsbsy}                 \usepackage{mathrsfs}                 \usepackage{upgreek}                 \setlength{\oddsidemargin}{-00pt}                 \begin{document}$$\begin{aligned}&\frac{0}{0}\int _\varOmega (u^m_h)^0 \, \rho ^m\, |\nabla \phi ^{m}|- \frac{0}{0}\int _\varOmega (u^{m-0}_h)^0 \, \rho ^{m-0}\, | \nabla \phi ^{m-0}|\nonumber \\&\qquad +