Nonholonomic Lorentzian Geometry on Some ℍ-Type Groups

Hypoelliptic second order differential equations

Lars Hörmander · Acta Mathematica · 1967 · 2.4K citations · Full text

Natural Sciences, Mathematics, Differential Equations +5

Sub-Riemannian geometry

Robert S. Strichartz · Journal of Differential Geometry · 1986 · 656 citations · Full text

Fundamental solutions for a class of hypoelliptic PDE generated by composition of quadratic forms

Aroldo Kaplan · Transactions of the American Mathematical Society · 1980 · 395 citations · Full text

Natural Sciences, Mathematics, Physics +12

Shortest paths for sub-Riemannian metrics on rank-two distributions

Wensheng Liu, Héctor J. Sussman · Memoirs of the American Mathematical Society · 1996 · 222 citations

Natural Sciences, Biostatistics, Computational Geometry +10

H-type groups and Iwasawa decompositions

Michael Cowling, A. H. Dooley, Adam Korányi et al. · Advances in Mathematics · 1991 · 207 citations

Natural Sciences, Chemistry, Representation Theory +5