HUAH CHUMING-CHANG KANG2018-09-102018-09-102005http://www.scopus.com/inward/record.url?eid=2-s2.0-26444459412&partnerID=MN8TOARShttp://scholars.lib.ntu.edu.tw/handle/123456789/313695A variant of the Reynolds operatorjournal article10.1090/S0002-9939-05-07845-7