An Introduction to the Heisenberg Group and the Sub-Riemannian Isoperimetric Problem - Capogna, Luca.; Pauls, Scott D.; Danielli, Donatella; Tyson, Jeremy T.; SpringerLink (Online service) (Basel : Birkhäuser Basel, 2007)
Keywords: Mathematics; Topological Groups; Global analysis; Differential equations, partial; Systems theory; Global differential geometry; Cell aggregation -- Mathematics; Mathematics; Topological Groups, Lie Groups; Differential Geometry; Manifolds and Cell Complexes (incl. Diff.Topology).; Partial Differential Equations; Global Analysis and Analysis on Manifolds; Systems Theory, Control