Maximal Hypoellipticity for Left-Invariant Differential Operators on Lie Groups
Journal of Lie Theory, Volume 29 (2019) no. 3, pp. 801-809
Given a maximal hypoelliptic differential operator of arbitrary order, we prove that its graph norm controls the Sobolev norm of the same order if the operator has left-invariant principal part and lower order terms with bounded coefficients. As an application, we obtain the essential self-adjointness on L2 of Rumin's Laplacians on the contact complex of the Heisenberg groups.
DOI:
10.5802/jolt.1079
Classification:
35H10, 35H20, 22E30
Keywords: Maximal hypoellipticity, Lie groups, Laplace operators
Keywords: Maximal hypoellipticity, Lie groups, Laplace operators
@article{JOLT_2019_29_3_a8,
author = {T. Bruno},
title = {Maximal {Hypoellipticity} for {Left-Invariant} {Differential} {Operators} on {Lie} {Groups}},
journal = {Journal of Lie Theory},
pages = {801--809},
year = {2019},
volume = {29},
number = {3},
doi = {10.5802/jolt.1079},
zbl = {1423.35085},
url = {https://jolt.centre-mersenne.org/articles/10.5802/jolt.1079/}
}
T. Bruno. Maximal Hypoellipticity for Left-Invariant Differential Operators on Lie Groups. Journal of Lie Theory, Volume 29 (2019) no. 3, pp. 801-809. doi: 10.5802/jolt.1079
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