I want to make a slide. I make code as below.
\documentclass[xcolor=dvipsnames, 10pt,notheorems]{beamer}
\usetheme{Antibes}
\usecolortheme[named=Red]{structure}
\usepackage[utf8]{inputenc}
\usepackage{amssymb}
\usepackage{amsfonts}
\usepackage{amsmath}
\usepackage{xcolor}
\usepackage[english]{babel}
\newtheorem{definition}{Definisi}
\setbeamertemplate{theorems}[numbered]
\setbeamertemplate{caption}[numbered]
\begin{document}
\title[]{TITLE}
\author[]{{\textbf{by:}
\begin{center}
\begin{enumerate}
\item Author 1
\item Author 2
\item Author 3
\end{enumerate}
\end{center}
}}
\vfill
\institute{{DEPARTMENT OF MATHEMATICS\\ABC UNIVERSITY\\CITY}
\date{}
}
\begin{frame}[plain]
\titlepage
\end{frame}
\end{document}
And the result is
Why the \begin{center} ... \end{center}
and \vfill
is not working?
I want make title page as this picture.
So, how to make center the author names and put the institute and date in bottom of slide?