Results 111 to 120 of about 28,626 (211)
Mass-deformed M2 branes in Stenzel space
We obtain finite-temperature M2 black branes in 11-dimensional supergravity, in a G 4-flux background whose self-dual part approaches a solution of Cvetič, Gibbons, Lü, and Pope, based upon Stenzel’s family of Ricci-flat Kähler deformed cones.
Óscar J. C. Dias+3 more
doaj +1 more source
Microwave Sensing and Imaging Technology in Food Applications: A Comprehensive Review
ABSTRACT Microwave sensing (MWS) and imaging (MWI) technologies have gained significant attention as non‐destructive methods for assessing food quality, ensuring safety, and verifying authenticity. This review provides a comprehensive evaluation of MW‐based systems in food applications, integrating both theoretical foundations and practical ...
Aysenur Betul Bilgin, Pervin Basaran
wiley +1 more source
On LP-Kenmotsu Manifold with Regard to Generalized Symmetric Metric Connection of Type (α, β)
In the current article, we examine Lorentzian para-Kenmotsu (shortly, LP-Kenmotsu) manifolds with regard to the generalized symmetric metric connection ∇G of type (α,β).
Doddabhadrappla Gowda Prakasha+3 more
doaj +1 more source
An attempt to geometrize electromagnetism
This study investigates the curved worldline of a charged particle accelerated by an electromagnetic field in flat spacetime. A new metric, which dependes on the charge-to-mass ratio and electromagnetic potential, is proposed to describe the curve ...
Huang XiuLin, Xu Yan, Liu ChengZhi
doaj +1 more source
We study the perturbative unitarity of scattering amplitudes in general dimensional reductions of Yang-Mills theories and general relativity on closed internal manifolds.
James Bonifacio, Kurt Hinterbichler
doaj +1 more source
We consider a multidimensional Kaluza-Klein (KK) model with a Ricci-flat internal space, for example, a Calabi-Yau manifold. We perturb this background metrics by a system of gravitating masses, for example, astrophysical objects such as our Sun.
Alexey Chopovsky+2 more
doaj +1 more source
Conformally Flat Manifolds and a Pinching Problem on the Ricci Tensor [PDF]
Samuel I. Goldberg, Mitsutaka Okumura
openalex +1 more source
Learning group invariant Calabi–Yau metrics by fundamental domain projections
We present new invariant machine learning models that approximate the Ricci-flat metric on Calabi–Yau (CY) manifolds with discrete symmetries. We accomplish this by combining state of the art models for predicting such metrics, based on the so-called φ ...
Yacoub Hendi+2 more
doaj +1 more source
A Ricci flat pseudo-Riemannian metric on the tangent bundle of a Riemannian manifold [PDF]
Neculai Papaghiuc
openalex +1 more source
Complete Ricci-flat K�hler manifolds of infinite topological type
We display an infinite dimensional family of complete Ricci-flat Kahler manifolds of complex dimension 2, for which the second homology is infinitely generated. These are obtained from the Gibbons-Hawking Ansatz [2] by using infinitely many, sparsely distributed centers.
Claude LeBrun+3 more
openaire +3 more sources