1. Arnaudon, M., Driver, B.K., Thalmaier, A.: Gradient estimates for positive harmonic functions by stochastic analysis. Stochastic Process. Appl. 117(2), 202–220 (2007)
2. Arnaudon, M., Plank, H., Thalmaier, A.: A Bismut type formula for the Hessian of heat semigroups. C. R. Math. Acad. Sci. Paris 336(8), 661–666 (2003)
3. Bismut, J.-M.: Large deviations and the Malliavin calculus, Progress in Mathematics, vol. 45. Birkhäuser Boston Inc, Boston, MA (1984)
4. Cao, J., Cheng, L.-J., Thalmaier, A.: Hessian heat kernel estimates and Calderón-Zygmund inequalities on complete Riemannian manifolds, arXiv:2108.13058 (2021)
5. Chen, X., Li, X.-M., Wu, B.: Logarithmic heat kernels: estimates without curvature restrictions, arXiv:2106.02746v1 (2021)