RT Journal T1 THE PRODUCT OPERATOR BETWEEN BLOCH-TYPE SPACES OF SLICE REGULAR FUNCTIONS A1 Yuxia LIANG PB Acta mathematica scientia,Series B FD 2021-10-25 YR 2021 JF Acta mathematica scientia, Series B JO Acta mathematica scientia,Series B VO 41 IS 5 SP 1606 DO 10.1007/s10473-021-0512-7 K1 essential norm;differentiation;composition operator;Bloch-type space;slice regular functions LK {http://121.43.60.238/sxwlxbB/EN/article/article_16522.shtml}