In the study of the extremal for Sobolev inequality on the Heisenberg group and the Cauchy-Riemann(CR) Yamabe problem, Jerison-Lee found a three-dimensional family of differential identities for critical exponent subelliptic equation on Heisenberg group $\mathbb H^n$ by using the computer in [5]. They wanted to know whether there is a theoretical framework that would predict the existence and the structure of such formulae. With the help of dimension conservation and invariant tensors, we can answer the above question.
Xinan Ma
,
Qianzhong Ou
,
Tian Wu
. JERISON-LEE IDENTITIES AND SEMI-LINEAR SUBELLIPTIC EQUATIONS ON HEISENBERG GROUP[J]. Acta mathematica scientia, Series B, 2025
, 45(1)
: 264
-279
.
DOI: 10.1007/s10473-025-0121-y
[1] Bidaut-Véron M F, Véron L. Nonlinear elliptic equations on compact Riemannian manifolds and asymptotics of Emden equations. Invent Math, 1991, 106: 489-539
[2] Catino G, Li Y Y, Monticelli D D, Roncoron A. A Liouville theorem in the Heisenberg group. arXiv: 2310.10469
[3] Dolbeault J, Esteban M J, Loss M. Nonlinear flows and rigidity results on compact manifolds. J Funct Anal, 2014, 267(5): 1338-1363
[4] Flynn J, Vétois J. Liouville-type results for the CR Yamabe equation in the Heisenberg group. arXiv: 2310.14048
[5] Jerison D, Lee J M. Extremals for the Sobolev inequality on the Heisenberg group and the CR Yamabe problem. J Amer Math Soc, 1988, 1(1): 1-13
[6] Ma X N, Ou Q Z. A Liouville theorem for a class semilinear elliptic equations on the Heisenberg group. Adv Math, 2023, 413: Art 108851
[7] Obata M. The conjectures on conformal transformations of Riemannian manifolds. J Differential Geometry, 1971, 6(2): 247-258