Results 131 to 140 of about 70,602 (222)

Good continuation in 3D: the neurogeometry of stereo vision

Frontiers in Computer Science
Classical good continuation for image curves is based on 2D position and orientation. It is supported by the columnar organization of cortex, by psychophysical experiments, and by rich models of (differential) geometry.
Maria Virginia Bolelli, Maria Virginia Bolelli, Giovanna Citti, Alessandro Sarti, Steven W. Zucker   +4 more
doaj   +1 more source

The Schouten Curvature Tensor and the Jacobi Equation in Sub-Riemannian Geometry

Journal of Mathematical Sciences, 2021
V. R. Krym
semanticscholar   +1 more source

Analytic torsion of nilmanifolds with (2, 3, 5) distributions

Analysis and Geometry in Metric Spaces
We consider generic rank two distributions on five-dimensional nilmanifolds and show that the analytic torsion of their Rumin complex coincides with the Ray-Singer torsion.
Haller Stefan
doaj   +1 more source

New second-order optimality conditions in sub-Riemannian Geometry

, 2022
Michał Jóźwikowski
openalex   +2 more sources

Comparing three possible hypoelliptic Laplacians on the 5-dimensional Cartan group via div-curl type estimates

Advanced Nonlinear Studies
On 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

Superdimensional Metamaterial Resonators From Sub-Riemannian Geometry [PDF]

, 2018
Allan Greenleaf, Henrik Kettunen, Yaroslav Kurylev, Matti Lassas, Günther Uhlmann   +4 more
openalex   +1 more source

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

Book Review: A comprehensive introduction to sub-Riemannian geometry. From the Hamiltonian viewpoint

Bulletin of the American Mathematical Society, 2020
R. Montgomery
semanticscholar   +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

Variational aspects of the geodesic problem in sub-Riemannian geometry

, 1999
Paolo Piccione, Daniel V. Tausk
openalex   +2 more sources