Results 121 to 130 of about 71,381 (220)
Advanced Nonlinear StudiesOn general Carnot groups, the definition of a possible hypoelliptic Hodge-Laplacian on forms using the Rumin complex has been considered in (M. Rumin, “Differential geometry on C-C spaces and application to the Novikov-Shubin numbers of nilpotent Lie ...
Baldi Annalisa, Tripaldi Francesca
doaj +1 more source
Symplectic, Hofer and sub-Riemannian geometry
, 2002 The purpose of this note is to make some connection between the sub-Riemannian geometry on Carnot-Caratheodory groups and symplectic geometry. We shall concentrate here on the Heisenberg group, although it is transparent that almost everything can be done on a general Carnot-Caratheodory group.
openaire +2 more sources
Comparison theorems for conjugate points in sub-Riemannian geometry [PDF]
, 2015 Davide Barilari, Luca Rizzi
openalex +1 more source
On the Hausdorff volume in sub-Riemannian geometry
, 2010 Andrei Agrachev +2 more
openalex +1 more source
Dilatation structures in sub-riemannian geometry
, 2007 Based on the notion of dilatation structure arXiv:math/0608536, we give an intrinsic treatment to sub-riemannian geometry, started in the paper arXiv:0706.3644 . Here we prove that regular sub-riemannian manifolds admit dilatation structures. From the existence of normal frames proved by Bellaiche we deduce the rest of the properties of regular sub ...
openaire +2 more sources
Recognition of motor intentions from EEGs of the same upper limb by signal traceability and Riemannian geometry features. [PDF]
Front Neurosci, 2023 Zhang M, Huang J, Ni S.
europepmc +1 more source
Singularities in sub-Riemannian geometry
, 2018 We investigate the relationship between features of of sub-Riemannian geometry and an array of singularities that typically arise in this context.With sub-Riemannian Whitney theorems, we ensure the existence of global extensions of horizontal curves defined on closed set by requiring a non-singularity hypothesis on the endpoint-map of the nilpotent ...
openaire +1 more source
Sub-Riemannian geometry of the coefficients of univalent functions [PDF]
, 2006 Irina Markina +2 more
openalex +1 more source
Almost-Riemannian manifolds do not satisfy the curvature-dimension condition. [PDF]
Calc Var Partial Differ Equ, 2023 Magnabosco M, Rossi T.
europepmc +1 more source