AUTHOR=Sottinen Tommi , Alòs Elisa , Azmoodeh Ehsan , Di Nunno Giulia TITLE=Editorial: Long-Memory Models in Mathematical Finance 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.2021.705429 DOI=10.3389/fams.2021.705429 ISSN=2297-4687