AUTHOR=Glickenstein David , Hamm Keaton , Huo Xiaoming , Mei Yajun , Stoll Martin TITLE=Editorial: Mathematical Fundamentals of Machine Learning JOURNAL=Frontiers in Applied Mathematics and Statistics VOLUME=7 YEAR=2021 URL=https://www.frontiersin.org/journals/applied-mathematics-and-statistics/articles/10.3389/fams.2021.674785 DOI=10.3389/fams.2021.674785 ISSN=2297-4687