Results 1 to 10 of about 59,055 (125)

Hilbert transforms and the Cauchy integral in euclidean space [PDF]

open access: yes, 2009
We generalize the notion of harmonic conjugate functions and Hilbert transforms to higher dimensional euclidean spaces, in the setting of differential forms and the Hodge-Dirac system.
Axelsson, Andreas   +2 more
core   +3 more sources

AI-Powered Approaches for Hypersurface Reconstruction in Multidimensional Spaces

open access: yesMathematics
The present article explores the possibilities of using artificial neural networks to solve problems related to reconstructing complex geometric surfaces in Euclidean and pseudo-Euclidean spaces, examining various approaches and techniques for training ...
Kostadin Yotov   +3 more
doaj   +2 more sources

Classification of rotational surfaces in Euclidean space satisfying a linear relation between their principal curvatures [PDF]

open access: yesMathematische Nachrichten, 2020
AbstractWe classify all rotational surfaces in Euclidean space whose principal curvatures κ1 and κ2 satisfy the linear relation , where a and b are two constants. As a consequence of this classification, we find closed (embedded and not embedded) surfaces and periodic (embedded and not embedded) surfaces with a geometric behaviour similar to Delaunay ...
López, Rafael, Pámpano, Álvaro
openaire   +2 more sources

Random-bond Ising model and its dual in hyperbolic spaces. [PDF]

open access: yesPhysical Review E, 2022
We analyze the thermodynamic properties of the random-bond Ising model (RBIM) on closed hyperbolic surfaces using Monte Carlo and high-temperature series expansion techniques.
B. Placke, N. P. Breuckmann
semanticscholar   +1 more source

General rotational ξ−surfaces in Euclidean spaces

open access: yes, 2021
The general rotational surfaces in the Euclidean 4-space R was first studied by Moore (1919). The Vranceanu surfaces are the special examples of these kind of surfaces.
K. Arslan, Yılmaz Aydın, B. Bulca
semanticscholar   +1 more source

Learning Neural Operators on Riemannian Manifolds [PDF]

open access: yesNational Science Open, 2023
In Artificial Intelligence (AI) and computational science, learning the mappings between functions (called operators) defined on complex computational domains is a common theoretical challenge.
Gengxiang Chen   +5 more
semanticscholar   +1 more source

Low-dimensional de Sitter quantum gravity

open access: yesJournal of High Energy Physics, 2020
We study aspects of Jackiw-Teitelboim (JT) quantum gravity in two-dimensional nearly de Sitter (dS) spacetime, as well as pure de Sitter quantum gravity in three dimensions.
Jordan Cotler   +2 more
doaj   +1 more source

Minimisers of a fractional seminorm and nonlocal minimal surfaces [PDF]

open access: yes, 2020
The recent literature has intensively studied two classes of nonlocal variational problems, namely the ones related to the minimisation of energy functionals that act on functions in suitable Sobolev-Gagliardo spaces, and the ones related to the ...
C. Bucur   +3 more
semanticscholar   +1 more source

On the Harmonic Evolute Surfaces of Hasimoto Surfaces

open access: yesAdıyaman University Journal of Science, 2021
In this study, firstly by considering the evolution of a moving space curve, we give some related definitions and some new results about Hasimoto surfaces in Euclidean 3-spaces.
K. Eren, Alev Kelleci Akbay
semanticscholar   +1 more source

Mass, Entropy and Holography in Asymptotically de Sitter Spaces [PDF]

open access: yes, 2001
We propose a novel prescription for computing the boundary stress tensor and charges of asymptotically de Sitter (dS) spacetimes from data at early or late time infinity.
A. Peet   +80 more
core   +5 more sources

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