Equal contribution in the first page

Question

I have the following code:

\documentclass[11pt]{article}
\usepackage[utf8]{inputenc}
\usepackage{amsmath}
\usepackage{amsfonts}
\usepackage{amssymb}
\usepackage{authblk}
\title{Thermodynamic of black holes}
\author{Albert Einstein$^1$}
\author{Roger Penrose$^2$}
\author{Rabindranath Tagore$^3$}
\affil{$^1$Princeton, USA
\
$^2$Oxford, UK
\
$^3$Delhi, India
}
\affil{Correspondence: r.tagore@gmail.com}
\begin{document}

which looks like

How can I put the sentence "These authors contributed equally to this work." for the first two authors, above the email of corresponding author? Or, any other places which is more common? (for example, after the corresponding author's email?)

Manuel Cart · Accepted Answer · 2023-02-10T13:58:02.237

1

With authblk package, commands \affil and \author have an optional argument. You dont have to use $^1$ :

\documentclass[11pt]{article}
\usepackage[utf8]{inputenc}
\usepackage{amsmath}
\usepackage{amsfonts}
\usepackage{amssymb}
\usepackage{authblk}
\title{Thermodynamic of black holes}
\author[1]{Albert Einstein}
\author[2]{Roger Penrose}
\author[3]{Rabindranath Tagore}
\affil[1]{Princeton, USA}
\affil[2]{Oxford, UK}
\affil[3]{Delhi, India}
\affil[1,2]{These authors contributed equally to this work.}
\affil[3]{Correspondence: r.tagore@gmail.com}
\begin{document}
\maketitle
\end{document}

edited Feb 10 '23 at 13:58

answered Feb 10 '23 at 13:42

Manuel Cart

541
2
9

+1 nice package, first I have heard of it, thanks! – JamesT Feb 10 '23 at 13:56
You can put a \vspace in \affil command : \affil[3]{Delhi, India \vspace{1em}} – Manuel Cart Feb 11 '23 at 09:26

score 0 · Answer 2 · answered Feb 10 '23 at 13:16

\documentclass[11pt]{article}
\usepackage[utf8]{inputenc}
\usepackage{amsmath}
\usepackage{amsfonts}
\usepackage{amssymb}
\usepackage{authblk}
\makeatletter
\newcommand@contributions{These authors contributed equally to this work.\textsuperscript{1}\textsuperscript{,2}}
\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 0.5em%
    @contributions% % <----
    \vskip 1.5em
    {\large @date}%
  \end{center}%
  \par
  \vskip 1.5em}
\makeatother
\title{Thermodynamic of black holes}
\author{Albert Einstein\textsuperscript{1}}
\author{Roger Penrose\textsuperscript{2}}
\author{Rabindranath Tagore\textsuperscript{3}}
\affil{\textsuperscript{1}Princeton, USA
\
\textsuperscript{2}Oxford, UK
\
\textsuperscript{3}Delhi, India
}
\affil{Correspondence: r.tagore@gmail.com}
\begin{document}
\maketitle
Text
\end{document}

This answer redefines \@maketitle using help from Werner's answer to How does \thanks work in LaTeX article class?. I didn't notice that you were manually adding the affiliations to the authors via $^1$ which simplifies it. You can change the distances between \maketitle entries by modifying \vskip values.

Also, I changed your superscript notion from $^1$ to \textsuperscript{1} which I prefer (I am not sure if it is essential but it is better then using math mode in-text I think?). Modify the values in \@contributions to change to other authors as you wish, hope this is helpful.

Equal contribution in the first page

2 Answers2