Results 31 to 40 of about 12,537 (310)

Momentum-space gravity from the quantum geometry and entropy of Bloch electrons

open access: yesPhysical Review Research, 2022
Quantum geometry is a key quantity that distinguishes electrons in a crystal from those in the vacuum. Its study continues to provide insights into quantum materials, uncovering new design principles for their discovery.
Tyler B. Smith   +2 more
doaj   +1 more source

On Geodesic Segments in the Infinitesimal Asymptotic Teichmüller Spaces

open access: yesJournal of Function Spaces, 2015
Let AZ(R) be the infinitesimal asymptotic Teichmüller space of a Riemann surface R of infinite type. It is known that AZ(R) is the quotient Banach space of the infinitesimal Teichmüller space Z(R), where Z(R) is the dual space of integrable quadratic ...
Yan Wu, Yi Qi, Zunwei Fu
doaj   +1 more source

From curves to currents

open access: yesForum of Mathematics, Sigma, 2021
Many natural real-valued functions of closed curves are known to extend continuously to the larger space of geodesic currents. For instance, the extension of length with respect to a fixed hyperbolic metric was a motivating example for the development of
Dídac Martínez-Granado   +1 more
doaj   +1 more source

GEOMETRIC PROPERTIES OF GEODESIC SPHERES IN A COMPLEX PROJECTIVE SPACE

open access: yes, 2023
We survey geometric properties of geodesic spheres in a complex projective space. These spheres can be regarded as the simplest examples in the class of all real hypersurfaces isometrically immersed into this projective space.
Maeda, Sadahiro
core   +1 more source

Approximating Solutions of Optimization Problems via Fixed Point Techniques in Geodesic Spaces

open access: yesAxioms, 2022
The principal objective of this paper is to find the solution to a constrained minimization problem and the zero of the monotone operator in geodesic spaces. The basic tool in our study is a nonexpansive mapping.
Rahul Shukla
doaj   +1 more source

Chebyshev sets in geodesic spaces

open access: yesJournal of Approximation Theory, 2016
A subset \(C\) of a metric space \((X,d)\) is a Chebyshev set if each point in \(X\) has a unique closest point in \(C\). With the added structure for \((X,d)\) being a normed linear space questions involving the convexity of \(C\) become central (as well as questions about the smoothness of the unit ball of \(X\)).
David Ariza-Ruiz   +3 more
openaire   +2 more sources

Classification results for polyharmonic helices in space forms

open access: yesComptes Rendus. Mathématique
We derive various classification results for polyharmonic helices, which are polyharmonic curves whose geodesic curvatures are all constant, in space forms.
Branding, Volker
doaj   +1 more source

Quasi-Isometries Need Not Induce Homeomorphisms of Contracting Boundaries with the Gromov Product Topology

open access: yesAnalysis and Geometry in Metric Spaces, 2016
We consider a ‘contracting boundary’ of a proper geodesic metric space consisting of equivalence classes of geodesic rays that behave like geodesics in a hyperbolic space.We topologize this set via the Gromov product, in analogy to the topology of the ...
Cashen Christopher H.
doaj   +1 more source

No periodic geodesics in jet space

open access: yesPacific Journal of Mathematics, 2023
The $J^k$ space of $k$-jets of a real function of one real variable $x$ admits the structure of a sub-Riemannian manifold, which then has an associated Hamiltonian geodesic flow, and it is integrable. As in any Hamiltonian flow, a natural question is the existence of periodic solutions. Does $J^k$ have periodic geodesics?
openaire   +2 more sources

Some fixed-point theorems for a pair of Reich-Suzuki-type nonexpansive mappings in hyperbolic spaces

open access: yesTopological Algebra and its Applications, 2023
In this article, we prove some fixed-point results for a pair of Reich-Suzuki-type nonexpansive mappings in uniformly convex WW-hyperbolic spaces. We introduce a new iterative scheme and establish its convergence to the fixed points of a pair of Reich ...
Valappil Sreya Valiya   +1 more
doaj   +1 more source

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