中国科学院数学与系统科学研究院期刊网
Lp-gradient Estimates of Symmetric Markov Semigroups for 1 < p ≤ 2
Ana Bela Cruzeiro, Xi Cheng Zhang
Acta Mathematica Sinica . 2006, (1): 101 -104 .  DOI: 10.1007/s10114-005-0538-0