The (logarithmic) Sobolev inequalities along geometric flow and applications

For some class of geometric flows, we obtain the (logarithmic) Sobolev inequalities and their equivalence up to different factors directly and also obtain the long time non-collapsing and non-inflated properties, which generalize the results in the case of Ricci flow or List Ricci flow or harmonic-Ricci flow. As applications, for mean curvature flow in Lorentzian space with nonnegative sectional curvature and twisted Kahler-Ricci flow on Fano manifolds, we get the results above. (C) 2015 Elsevier Inc. All rights reserved.