Reduce spacing between authors in article title

I am creating the frontpage of an article I am working with using the \maketitlecommand. So far this is what I have:

\documentclass[a4paper,11pt]{article}
\usepackage[english]{babel}
\usepackage[utf8]{inputenc}
\usepackage[T1]{fontenc}
\usepackage{latexsym}
\usepackage{blindtext}
\usepackage{authblk}
\title{\textbf{Some title}}
\author{John Doe \\ University of Arizona \\ and
\and John Doe \\ University of Arizona  \\ and
\and John Doe \\ University of Arizona}
\begin{document}
\maketitle
\end{document}


And this is the result obtained:

However, Latex leaves blank a lot of space between the author and the university, and also between authors. I would like to reduce that space, but I dont known how to change it.

• Why are you even using the word and between them? Note really necessary when you separate vertically – daleif Feb 7 '19 at 16:08

\documentclass[a4paper,11pt]{article}
\usepackage[english]{babel}
\usepackage[utf8]{inputenc}
\usepackage[T1]{fontenc}
\usepackage{latexsym}
\usepackage{blindtext}
\usepackage{authblk}
\title{\textbf{Some title}}
\author{John Doe \\\vspace{-1em} University of Arizona \\
\and John Doe \\\vspace{-1em} University of Arizona  \\
\and John Doe \\\vspace{-1em} University of Arizona}
\begin{document}
\maketitle
\end{document}


An alternative is to use authblk, which has a setting for this (\affilsep)

\documentclass{article}
\usepackage{authblk}
\title{A Multiauthor Work}
\author{John Doe\\University of Life\and
Richard Roe\\School of Hard Knocks\and
Zoe Zoe\\Insitution of Institutional Thought}
\setlength{\affilsep}{2pt}%<- this affects spacing
\renewcommand{\Affilfont}{\itshape}%<-or whatever
\begin{document}

\maketitle

\end{document}