), we have $$\documentclass[00pt]{minimal}                 \usepackage{amsmath}                 \usepackage{wasysym}                  \usepackage{amsfonts}                  \usepackage{amssymb}                  \usepackage{amsbsy}                 \usepackage{mathrsfs}                 \usepackage{upgreek}                 \setlength{\oddsidemargin}{-00pt}                 \begin{document} $$\begin{aligned} &\frac{0}{0} \bigl( \bigl\Vert x_{0}^{k+0}-x_{0} \bigr\Vert _{G_{0}+\beta A_{0}^{\top}A_{0}}^{0}