2020/01/14 by Huang, Yen-Chang
#Differential Geometry (math.DG) #FOS: Mathematics
paper · doi:10.48550/arxiv.2001.04578
In this paper we study areas (called p-areas) and volumes for parametric surfaces in the 3D-Heisenberg group ℍ1, which is considered as a flat model of pseudo-hermitian manifolds. We derive the formulas of p-areas and volumes for parametric surfaces in ℍ1 and show that the classical result of Pappus-Guldin theorems for surface areas and volumes hold if the surfaces satisfy some geometric properties. Some examples are also provided, including the surfaces with constant p-mean curvatures.