Mean value formulas for classical solutions to subelliptic evolution equations in stratified Lie groups

Diego Pallara, Sergio Polidoro

We prove mean value formulas for classical solutions to second order linear differential equations in the form $${\partial }_{t}u=\sum _{i,j=1}^m{X}_i(a_{ij}{X}_{j}u)+X_{0}u+f,$$ w…