AUTHOR=Martynyak Rostyslav , Torskaya Elena , Xu Yang TITLE=Editorial: Friction and Multi-Field Problems in Sliding Contacts JOURNAL=Frontiers in Mechanical Engineering VOLUME=6 YEAR=2020 URL=https://www.frontiersin.org/journals/mechanical-engineering/articles/10.3389/fmech.2020.593544 DOI=10.3389/fmech.2020.593544 ISSN=2297-3079