Geodesic inversion and Sobolev spaces on Heisenberg type groupsArkiv för Matematik -  Tập 43  - Trang 51-67 - 2005
Francesca Astengo, Bianca Di Blasio
Let σ be the geodesic inversion on a Heisenberg type groupN with homogeneous dimensionQ, and denote byS the jacobian of σ. We prove that, for
                  
                    
                  
                  
$$ - \frac{1}{2}Q< \alpha< \frac{1}{2}Q$$
                , the operators
                  
                    
                  
                  
$$T_\alpha  :f \mapsto S^{1......  hiện toàn bộ