7 citations · 9 across the 4 of their papers we have counts for
4 papers
math.AP2003★ 2 cited
Viscosity convex functions on Carnot groups
Changyou Wang
We prove that any locally bounded from below, upper semicontinuous v-convex function in any Carnot group is h-convex.
math.AP2003★ 7 cited
The comparsion principle for viscosity solutions of fully nonlinear subelliptic equations in Carnot groups
Changyou Wang
For any Carnot group and a bounded domain , we prove that viscosity solutions in $C(\bar\Om)$ of the fully nonlinear subelliptic equation $F(u,\nabla_h u, \…
math.AP2003
The Aronsson equation for absolute minimizers of -functionals associated with vector fields satisfying Hörmander's condition
Changyou Wang
Given a Carnot-Carathéodory metric space generated by vector fields satisfying Hörmander's condition, we prove in theorem A that any absolu…
math.DG2003
On the Mean Curvature Flow for -Convex Hypersurfaces
Hao Fang, ChangYou Wang
We obtain estimates on both size and dimensions of the singular set at the first blow-up time of the mean curvature flow of hypersurfaces whose initial data is -convex.