我在摘要末尾添加了脚注，但它没有显示在页面底部。以下是 TeX 代码的片段。
\documentclass[12pt]{amsart}
\usepackage{pstricks}
\usepackage{amsfonts}
\usepackage{amssymb}
\usepackage{amsthm}
\usepackage{latexsym,amsmath}
\usepackage{graphicx}
\usepackage{stmaryrd}
\title[Intrinsically justified reflection principles]{A proposed characterisation of the intrinsically justified reflection principles}
\author[$\mathrm{M^{\lowercase{c}}Callum}$ ]{\textbf{Rupert} $\mathbf{M^{\lowercase{c}}Callum}$ }
\begin{document}
\begin{abstract}
We are concerned with the distinction between intrinsic and extrinsic justifications for large-cardinal axioms, as outlined in for example Section 3 of \cite{Godel1964}. William Tait and Peter Koellner have examined the question of which reflection principles can be said to be intrinsically justified on the basis of the iterative conception of set. We formulate a new reflection principle which subsumes all of the reflection principles which which were considered by Tait and Koellner and are also known to be consistent, and which is itself consistent relative to an $\omega$-Erd\H{o}s cardinal. An open-ended family of strengthenings of this principle is tentatively proposed as exhausting everything that can be said to be intrinsically justified on the basis of the iterative conception of set. \footnote{The author was supported by the research grant DE 436/10-1 from Deutsche Forschungsgemeinschaft.}
\end{abstract}
\maketitle
\end{document}
答案1
由于amsart.cls抽象环境的内容是的一部分maketitle，因此需要使用 来\thanks代替\footnote。
不要像排版姓氏那样费劲，
\newcommand{\McCallum}{M\textsuperscript{\MakeLowercase{c}}Callum}
使用起来\McCallum{}似乎更容易（仅当名称后面有空格时才需要括号）。
\documentclass[12pt]{amsart}
\usepackage{pstricks}
\usepackage{amsfonts}
\usepackage{amssymb}
\usepackage{amsthm}
\usepackage{latexsym,amsmath}
\usepackage{graphicx}
\usepackage{stmaryrd}
\newcommand{\McCallum}{M\textsuperscript{\MakeLowercase{c}}Callum}
\begin{document}
\title[Intrinsically justified reflection principles]{%
A proposed characterisation of the intrinsically
justified reflection principles%
}
\author[\McCallum]{\textbf{Rupert \McCallum}}
\thanks{The author was supported by the research grant DE 436/10-1
from Deutsche Forschungsgemeinschaft.}
\begin{abstract}
We are concerned with the distinction between intrinsic and extrinsic
justifications for large-cardinal axioms, as outlined in for example
Section 3 of \cite{Godel1964}. William Tait and Peter Koellner have
examined the question of which reflection principles can be said to
be intrinsically justified on the basis of the iterative conception
of set. We formulate a new reflection principle which subsumes all
of the reflection principles which which were considered by Tait
and Koellner and are also known to be consistent, and which is
itself consistent relative to an $\omega$-Erd\H{o}s cardinal.
An open-ended family of strengthenings of this principle is
tentatively proposed as exhausting everything that can be said to
be intrinsically justified on the basis of the iterative conception
of set.
\end{abstract}
\maketitle
\end{document}
