22 citations · 22 across the 2 of their papers we have counts for
2 papers
math.DG2007★ 22 cited
Conformal Powers of the Laplacian via Stereographic Projection
C. Robin Graham
A new derivation is given of Branson's factorization formula for the conformally invariant operator on the sphere whose principal part is the k-th power of the scalar Laplacian. Th…
math.DG2003
CR Invariant powers of the sub-Laplacian
A. Rod Gover, C. Robin Graham
CR invariant differential operators on densities with leading part a power of the sub-Laplacian are derived. One family of such operators is constructed from the ``conformally inva…