SHU-CHENG CHANGTie, J.J.TieWu, C.-T.C.-T.Wu2018-09-102018-09-102010http://www.scopus.com/inward/record.url?eid=2-s2.0-77957936191&partnerID=MN8TOARShttp://scholars.lib.ntu.edu.tw/handle/123456789/356005Subgradient estimate and liouville-type theorem for the CR heat equation on heisenberg groupsbook10.1017/S00277630000256782-s2.0-77957936191WOS:000236497500004