我遇到了一个问题，当我向期刊（Portugaliae Mathematica）撰写文章时，我认为我无法在乳胶模板中找到正确的命令。我无法在 pdf 文件中看到作者的姓名和电子邮件地址。
我的 .tex 文件包含以下内容：
%------------------------------------------------------------------------------
% Beginning of example.tex
%------------------------------------------------------------------------------
%
% LaTeX sample file for PORTUGALIAE MATHEMATICA
%
%
% NOTE: In order to use this file you need the class file pm.cl which should
% located in the same directory as this file.
%
%
\documentclass[11pt]{article}
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
% Author's Adresse(s)
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%%%%%%%%%% Use this for your address{es)
%%%%%%%%%% they will appear at the end of your article
%%%%%%%%%% use one \address[]{} for each author
\usepackage{amsmath}
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
% Theorem like environments
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
% Uncomment the next line if you would like your equations to be numbered according to sections:
%\numberwithin{equation}{section}
\newtheorem{theorem}{Theorem}[section]
\newtheorem{corollary}[theorem]{Corollary}
\newtheorem{lemma}[theorem]{Lemma}
\newtheorem{proposition}[theorem]{Proposition}
\newtheorem{conjecture}[theorem]{Conjecture}
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
% Title and author(s)'s name(s)
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
\begin{document}
\begin{abstract}
我怎么解决这个问题？