Moving the date in amsart

Question

I am using the amsart documentclass. I use \maketitle at the beginning of my file:

\date{\today}
\maketitle

The problem is that amsart places the date in a footnote at the bottom of the first page, and I want the date to appear at the top of the page, under the author (where the date would appear using the article documentclass). Is there a way to change this behavior?

Answer 1

A simpler way to patch the \maketitle command in amsart is

\usepackage{etoolbox}
\makeatletter
\patchcmd{\@maketitle}
  {\ifx\@empty\@dedicatory}
  {\ifx\@empty\@date \else {\vskip3ex \centering\footnotesize\@date\par\vskip1ex}\fi
   \ifx\@empty\@dedicatory}
  {}{}
\patchcmd{\@adminfootnotes}
  {\ifx\@empty\@date\else \@footnotetext{\@setdate}\fi}
  {}{}{}
\makeatother

The spirit is just the same as Schweinebacke's answer, but this code doesn't require to copy the entire definition of \@maketitle and \@adminfootnotes.

Answer 2

You may use the standard class article with additional packages amsthm, mathtools, and maybe amsrefs to have a standard class with most features of the AMS classes but standard class lookalike.

Alternative you may use amsart and combine it with the title definition of article:

\documentclass{amsart}

\makeatletter
\renewcommand\maketitle{\par
  \begingroup
    \renewcommand\thefootnote{\@fnsymbol\c@footnote}%
    \def\@makefnmark{\rlap{\@textsuperscript{\normalfont\@thefnmark}}}%
    \long\def\@makefntext##1{\parindent 1em\noindent
            \hb@[email protected]{%
                \hss\@textsuperscript{\normalfont\@thefnmark}}##1}%
    \if@twocolumn
      \ifnum \col@number=\@ne
        \@maketitle
      \else
        \twocolumn[\@maketitle]%
      \fi
    \else
      \newpage
      \global\@topnum\z@   % Prevents figures from going at top of page.
      \@maketitle
    \fi
    \thispagestyle{plain}\@thanks
  \endgroup
  \setcounter{footnote}{0}%
  \global\let\thanks\relax
  \global\let\maketitle\relax
  \global\let\@maketitle\relax
  \global\let\@thanks\@empty
  \global\let\@author\@empty
  \global\let\@date\@empty
  \global\let\@title\@empty
  \global\let\title\relax
  \global\let\author\relax
  \global\let\date\relax
  \global\let\and\relax
}
\renewcommand*\@maketitle{%
  \newpage
  \null
  \vskip 2em%
  \begin{center}%
  \let \footnote \thanks
    {\LARGE \@title \par}%
    \vskip 1.5em%
    {\large
      \lineskip .5em%
      \begin{tabular}[t]{c}%
        \@author
      \end{tabular}\par}%
    \vskip 1em%
    {\large \@date}%
  \end{center}%
  \par
  \vskip 1.5em}
\renewcommand{\author}[1]{\gdef\@author{#1}}
\makeatother

\begin{document}
\title{title}
\author{me}
\date{\today}
\maketitle
\end{document}

Or you may redefine only \@maketitle of amsart:

\documentclass{amsart}

\makeatletter
\renewcommand*\@maketitle{%
  \normalfont\normalsize
  \@adminfootnotes
  \@mkboth{\@nx\shortauthors}{\@nx\shorttitle}%
  \global\topskip42\p@\relax % 5.5pc   "   "   "     "     "
  \@settitle
  \ifx\@empty\authors \else \@setauthors \fi
  \ifx\@empty\@date \else {\vskip 1em \vtop{\centering\large\@date\@@par}}\fi% MY CHANGE
  \ifx\@empty\@dedicatory
  \else
    \baselineskip18\p@
    \vtop{\centering{\footnotesize\itshape\@dedicatory\@@par}%
      \global\dimen@i\prevdepth}\prevdepth\dimen@i
  \fi
  \@setabstract
  \normalsize
  \if@titlepage
    \newpage
  \else
    \dimen@34\p@ \advance\dimen@-\baselineskip
    \vskip\dimen@\relax
  \fi
} % end \@maketitle
\renewcommand*\@adminfootnotes{%
  \let\@makefnmark\relax  \let\@thefnmark\relax
%  \ifx\@empty\@date\else \@footnotetext{\@setdate}\fi% MY CHANGE
  \ifx\@empty\@subjclass\else \@footnotetext{\@setsubjclass}\fi
  \ifx\@empty\@keywords\else \@footnotetext{\@setkeywords}\fi
  \ifx\@empty\thankses\else \@footnotetext{%
    \def\par{\let\par\@par}\@setthanks}%
  \fi
}
\makeatother

\begin{document}
\title{title}
\author{me}
\date{\today}
\maketitle
\end{document}

I've marked my changes of the original definitions of amsart at this alternative with comments % MY CHANGE.

But if you want a title page instead of a in page title head, have also a look at Resources for title page and front matter design.

Answer 3

I had the same problem, and here's what I did:

\author{Name Here\\\today}

It looks good, putting the date right below the author in the same font, but it could fail if you have any macros lying around that depend on your title.

If you want this to feel less ad hoc, you could put

% in the preamble or class file
\def\customauthor{\empty}
\def\customdate{\empty}
\let\oldauthor\author
\renewcommand{\author}[1]{\def\customauthor{#1}}
\renewcommand{\date}[1]{\def\customdate{#1}}
\oldauthor{\customauthor\\\customdate}

% and then, just as usual:
\author{Name Here}
\date{\today}
\maketitle

Though this is a little more complicated, it's more flexible, in case you need to change it later.