中国科学院数学与系统科学研究院期刊网
AMS
A Microscopic Convexity Principle for Spacetime Convex Solutions of Fully Nonlinear Parabolic Equations
Chuan Qiang CHEN, Bo Wen HU
Acta Mathematica Sinica . 2013, (4): 651 -674 .  DOI: 10.1007/s10114-012-1495-z