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math.AP2008★ 22 cited
Subelliptic Li-Yau estimates on three dimensional model spaces
D. Bakry, F. Baudoin, M. Bonnefont +1
We describe three elementary models in three dimensional subelliptic geometry which correspond to the three models of the Riemannian geometry (spheres, Euclidean spaces and Hyperbo…
math.AP2008★ 1 cited
The subelliptic heat kernel on SU(2): Representations, Asymptotics and Gradient bounds
Fabrice Baudoin, Michel Bonnefont
The Lie group SU(2) endowed with its canonical subriemannian structure appears as a three-dimensional model of a positively curved subelliptic space. The goal of this work is to st…