Metis is a Hugo theme written by Floris den Hengst, with the help of the excellent Xmin theme: it is a minimal template for academics. It supports MathJax.
For an example, click here.
Download the theme into the themes directory of your website:
cd /path/to/website/themes
git submodule add git@github.com:florisdenhengst/metis.git
Update your config, see the About page of the example site.