Results 51 to 60 of about 531 (177)

Hölder Regularity of the Solutions of Fredholm Integral Equations on Upper Ahlfors Regular Sets

Mathematical Methods in the Applied Sciences, Volume 49, Issue 12, Page 13361-13381, August 2026.
ABSTRACT We extend to the context of metric measured spaces, with a measure that satisfies upper Ahlfors growth conditions, the validity of (generalized) Hölder continuity results for the solution of a Fredholm integral equation of the second kind. Here we note that upper Ahlfors growth conditions include also cases of nondoubling measures.
Massimo Lanza de Cristoforis, Manuel Norman   +1 more
wiley   +1 more source

Bianchi I Spacetimes in f(Q)‐Gravity

Fortschritte der Physik, Volume 74, Issue 8, August 2026.
ABSTRACT The Kasner spacetimes are exact solutions that are self‐similar and of significant interest because they can describe the dynamic evolution of kinematic variables near the singularity of the Mixmaster universe. The chaotic behavior of the Mixmaster universe is related to the Kasner relations.
Andronikos Paliathanasis, Genly Leon
wiley   +1 more source

Cosmological bouncing solutions in f(T, B) gravity

European Physical Journal C: Particles and Fields, 2020
Teleparallel Gravity offers the possibility of reformulating gravity in terms of torsion by exchanging the Levi-Civita connection with the Weitzenböck connection which describes torsion rather than curvature.
Maria Caruana, Gabriel Farrugia, Jackson Levi Said   +2 more
doaj   +1 more source

Perturbative Analytical Construction of Bowen–York Initial Data for Binary Black Holes up to Third Order in Spin and Linear Momentum

Fortschritte der Physik, Volume 74, Issue 8, August 2026.
ABSTRACT We analytically construct initial data for binary black hole systems by solving the Einstein constraint equations within the Bowen–York framework. Allowing for arbitrarily oriented linear momenta and spins, we obtain a perturbative solution of the vacuum Hamiltonian constraint up to third order in the source parameters. Our solution explicitly
Leyla Ogurol, Tore Boybeyi, Bayram Tekin
wiley   +1 more source

Some Characterizations Of Surfaces Generated by Two Curves In Heis3

Sakarya Üniversitesi Fen Bilimleri Enstitüsü Dergisi, 2018
Inthis paper, some characterizations ofsurfaces which are constructed by using the group operation in are given. Then, a newclassification for minimal factorable surfaces in is obtained.
Gülden Altay Suroğlu
doaj   +1 more source

Bilaplacian on a Riemannian manifold and Levi-Civita connection

, 2022
We generalize for the Bilaplacian the Eells-Elworthy- Malliavin construction of the Brownian motion on a Riemannian manifold.
openaire   +2 more sources

Intrinsic Shape LDA With Application to Body Human Shapes Classification

Statistical Analysis and Data Mining: An ASA Data Science Journal, Volume 19, Issue 4, August 2026.
ABSTRACT Advancements in 3D scanning and cloud infrastructure enable the acquisition and analysis of high‐density body surface datasets. In this work, we propose a novel methodology that extends linear discriminant analysis (LDA) to Kendall's shape space for the classification of 3D objects, specifically human body shapes.
Jorge Valero, Vicent Gimeno i Garcia, M. Victoria Ibáñez, Amelia Simó   +3 more
wiley   +1 more source

(In)equivalence of metric-affine and metric effective field theories

European Physical Journal C: Particles and Fields, 2022
In a geometrical approach to gravity the metric and the (gravitational) connection can be independent and one deals with metric-affine theories. We construct the most general action of metric-affine effective field theories, including a generic matter ...
Gianfranco Pradisi, Alberto Salvio
doaj   +1 more source

Predicting Crack Propagation in Brittle TPMS Under Uniaxial Loading: A Dual Concept Approach via Geodesic Lines and Cross‐Sectional Analysis

International Journal of Ceramic Engineering &Science, Volume 8, Issue 4, July 2026.
Cracking in brittle TPMS structures is governed by their geometry, with cracks propagating along geodesic paths determined by the initial crack orientation. Regions with small cross‐sections and abrupt area transitions identify critical damage regions and explain the differences in compressive strength among Primitive, Gyroid, Neovius, and IWP designs.
Thi Ngoc Diep Tran, Vinit Vijay Deshpande, Romana Piat   +2 more
wiley   +1 more source

Projective real calculi and Levi-Civita connections

, 2023
Based on its central role in the framework of real calculi, the existence of the Levi-Civita connection for real calculi over projective modules is studied, with a special emphasis placed on the simple module of N-dimensional complex vectors over the algebra of complex N-by-N matrices.
openaire   +2 more sources