Results 81 to 90 of about 33,679 (219)

On Properties of Geodesic Semilocal E-Preinvex Functions [PDF]

open access: yesarXiv, 2018
The authors define a class of functions on Riemannian manifolds, which is called geodesic semilocal E-preinvex functions, as a generalization of geodesic semilocal E-convex and geodesic semi E-preinvex functions and some of its properties are established.
arxiv  

Black-Box Optimization Using Geodesics in Statistical Manifolds

open access: yesEntropy, 2015
Information geometric optimization (IGO) is a general framework for stochastic optimization problems aiming at limiting the influence of arbitrary parametrization choices: the initial problem is transformed into the optimization of a smooth function on a
Jérémy Bensadon
doaj   +1 more source

Geodesics in the Heisenberg Group

open access: yesAnalysis and Geometry in Metric Spaces, 2015
Abstract We provide a new and elementary proof for the structure of geodesics in the Heisenberg group Hn. The proof is based on a new isoperimetric inequality for closed curves in R2n.We also prove that the Carnot- Carathéodory metric is real analytic away from the center of the group.
Piotr Hajłasz, Scott Zimmerman
openaire   +4 more sources

The Interconnection Between Calculus of Variations, Partial Differential Equations and Differential Geometry

open access: yesSelecciones Matemáticas
Calculus of variations is a fundamental mathematical discipline focused on optimizing functionals, which map sets of functions to real numbers. This field is essential for numerous applications, including the formulation and solution of partial ...
Delphin Mwinken
doaj   +1 more source

Geodesics on an invariant surface

open access: yesJournal of Geometry and Physics, 2011
We study the geodesics on an invariant surface of a three dimensional Riemannian manifold. The main results are: the characterization of geodesic orbits; a Clairaut's relation and its geometric interpretation in some remarkable three dimensional spaces; the local description of the geodesics; the explicit description of geodesic curves on an invariant ...
MONTALDO, STEFANO, ONNIS I. I.
openaire   +3 more sources

A prime geodesic theorem for higher rank II: singular geodesics [PDF]

open access: yesRocky Mountain J. Math. 39, No. 2, 485-507 (2009), 2004
A prime geodesic theorem for singular geodesics in a locally symmetric space is proved. As an application, an asymptotic formula for units in number fields is given.
arxiv  

On the trajectories of null and timelike geodesics in different wormhole geometries

open access: yesEuropean Physical Journal C: Particles and Fields, 2018
The paper deals with an extensive study of null and timelike geodesics in the background of wormhole geometries. Starting with a spherically symmetric spacetime, null geodesics are analyzed for the Morris–Thorne wormhole (WH) and photon spheres are ...
Anuj Mishra, Subenoy Chakraborty
doaj   +1 more source

Geodesic Intersections

open access: yesJournal of Surveying Engineering
RevTex, 9 pages, 7 figures.
openaire   +2 more sources

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