Media type: E-Article Title: The center of q-Schur algebra U(2,r) Contributor: Gao, Wenting; Liu, Mingqiang imprint: Informa UK Limited, 2021 Published in: Communications in Algebra Language: English DOI: 10.1080/00927872.2021.1932953 ISSN: 0092-7872; 1532-4125 Origination: Footnote: