2025/01/08 by Di Donato, Daniela
#28A75 #35R03 #53C17 #Carnot groups #intrinsic differentiability #intrinsic graphs #intrinsic regular surfaces
paper · doi:10.6092/issn.2240-2829/21050
A Carnot group G is a simply connected, nilpotent Lie group with stratified Lie algebra. Intrinsic regular surfaces in Carnot groups play the same role as C1 surfaces in Euclidean spaces. As in Euclidean spaces, intrinsic regular surfaces can be locally defined in different ways: e.g. as non critical level sets or as continuously intrinsic differentiable graphs. The equivalence of these natural definitions is the problem that we are studying. This is a note based on the paper [8].