TY - JOUR AU - Khanh, Nguyen Ngoc TI - Gradient estimates of Li Yau type for a general heat equation on Riemannian manifolds JO - Archivum mathematicum PY - 2016 SP - 207 EP - 219 VL - 52 IS - 4 PB - mathdoc UR - http://geodesic.mathdoc.fr/articles/10.5817/AM2016-4-207/ DO - 10.5817/AM2016-4-207 LA - en ID - 10_5817_AM2016_4_207 ER -