Results 1 to 10 of about 1,235,506 (377)

Curvature operators and scalar curvature invariants [PDF]

open access: yesClassical and Quantum Gravity, 2010
We continue the study of the question of when a pseudo-Riemannain manifold can be locally characterised by its scalar polynomial curvature invariants (constructed from the Riemann tensor and its covariant derivatives). We make further use of alignment theory and the bivector form of the Weyl operator in higher dimensions, and introduce the important ...
Hervik, Sigbjørn, Coley, Alan
openaire   +7 more sources

DetectGPT: Zero-Shot Machine-Generated Text Detection using Probability Curvature [PDF]

open access: yesInternational Conference on Machine Learning, 2023
The increasing fluency and widespread usage of large language models (LLMs) highlight the desirability of corresponding tools aiding detection of LLM-generated text.
E. Mitchell   +4 more
semanticscholar   +1 more source

Abnormal Seebeck Effect in Vertically Stacked 2D/2D PtSe2/PtSe2 Homostructure

open access: yesAdvanced Science, 2022
When a thermoelectric (TE) material is deposited with a secondary TE material, the total Seebeck coefficient of the stacked layer is generally represented by a parallel conductor model.
Won‐Yong Lee   +9 more
doaj   +1 more source

Alternatingly Stacked Low‐ and High‐Resistance PtSe2/PtSe2 Homostructures Boost Thermoelectric Power Factors

open access: yesAdvanced Electronic Materials, 2023
2D transition‐metal dichalcogenide (TMDC) materials are promising candidates with excellent thermoelectric (TE) properties owing to their low dimensionality in electronic and phonon transport. However, the considerable coupling of the Seebeck coefficient
Won‐Yong Lee   +7 more
doaj   +1 more source

Blindness to Curvature and Blindness to Illusory Curvature [PDF]

open access: yesi-Perception, 2018
We compare two versions of two known phenomena, the Curvature blindness and the Kite mesh illusions, to highlight how similar manipulations lead to blindness to curvature and blindness to illusory curvature, respectively. The critical factor is a change in luminance polarity; this factor interferes with the computation of curvature along the contour ...
Bertamini, Marco, Kitaoka, Akiyoshi
openaire   +3 more sources

Magnonic band spectrum of spin waves in an elliptical helix [PDF]

open access: yesRoyal Society Open Science, 2018
We show that the spin-wave spectrum in an elliptical helix has a band character. The size of the first band gap calculated using the perturbation theory is shown to scale as square root of the eccentricity.
A. V. Golovchan   +3 more
doaj   +1 more source

Gaussian curvature dilutes the nuclear lamina, favoring nuclear rupture, especially at high strain rate

open access: yesNucleus, 2022
Nuclear rupture has long been associated with deficits or defects in lamins, with recent results also indicating a role for actomyosin stress, but key physical determinants of rupture remain unclear.
Charlotte R. Pfeifer   +8 more
doaj   +1 more source

Semianalytic calculation of gravitational wave spectrum nonlinearly induced from primordial curvature perturbations [PDF]

open access: yesPhysical Review D, 2018
Whether or not the primordial gravitational wave (GW) produced during inflation is sufficiently strong to be observable, GWs are necessarily produced from the primordial curvature perturbations in the second order of perturbation.
K. Kohri, T. Terada
semanticscholar   +1 more source

Tax Curvature

open access: yesSSRN Electronic Journal, 2021
In a Mirrleesian environment, a monopsonist sets hourly wages and individuals choose how many hours to work. Labor market outcomes do not only depend on the level and slope of the income tax function, but also on its curvature. A more concave tax schedule raises the elasticity of labor supply, which boosts wages.
openaire   +4 more sources

Robustness via Curvature Regularization, and Vice Versa [PDF]

open access: yesComputer Vision and Pattern Recognition, 2018
State-of-the-art classifiers have been shown to be largely vulnerable to adversarial perturbations. One of the most effective strategies to improve robustness is adversarial training.
Seyed-Mohsen Moosavi-Dezfooli   +3 more
semanticscholar   +1 more source

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