Results 31 to 40 of about 7,576 (262)

Modified inertia from extended uncertainty principle(s) and its relation to MoND

open access: yesEuropean Physical Journal C: Particles and Fields, 2020
In this paper we show that Modified Inertia, i.e., the modification of inertia predicted by some alternative theories of gravity at cosmic scales, can be naturally derived within the framework of the extended uncertainty principle (EUP). Specifically, we
Jaume Giné, Giuseppe Gaetano Luciano
doaj   +1 more source

Quadratic Extensions of Flag-transitive Planes

open access: yesEuropean Journal of Combinatorics, 1999
A finite affine plane \(\pi\) of order \(q^2\) which has a subplane \(\pi_0\) of order \(q\) is called a quadratic extension of a flag-transitive plane if it admits a collineation group \(G\) which leaves \(\pi_0\) invariant, acts transitively on the flags of \(\pi_0\), and acts transitively on the lines of \(\pi\) intersecting \(\pi_0\) in precisely ...
Yutaka Hiramine   +2 more
openaire   +2 more sources

Quartic exercises

open access: yesInternational Journal of Mathematics and Mathematical Sciences, 2003
A correspondence between quartic étale algebras over a field and quadratic étale extensions of cubic étale algebras is set up and investigated. The basic constructions are laid out in general for sets with a profinite group action and for torsors, and ...
Max-Albert Knus, Jean-Pierre Tignol
doaj   +1 more source

Generalized spinning particles on $${\mathcal {S}}^2$$ S 2 in accord with the Bianchi classification

open access: yesEuropean Physical Journal C: Particles and Fields, 2021
Motivated by recent studies of superconformal mechanics extended by spin degrees of freedom, we construct minimally superintegrable models of generalized spinning particles on $${\mathcal {S}}^2$$ S 2 , the internal degrees of freedom of which are ...
Anton Galajinsky
doaj   +1 more source

An extension of Gander’s result for quadratic equations

open access: yesJournal of Computational and Applied Mathematics, 2010
In the study of iterative methods with high order of convergence, Gander provides a general expression for iterative methods with order of convergence at least three in the scalar case. Taking into account an extension of this result, we define a family of iterations in Banach spaces with R-order of convergence at least four for quadratic equations ...
J. A. Ezquerro   +2 more
openaire   +3 more sources

Quadratic Extensions of Linearly Compact Fields [PDF]

open access: yesTransactions of the American Mathematical Society, 1972
A group valuation is constructed on the norm factor group of a quadratic extension of a linearly compact field, and the norm factor group is explicitly computed as a valued group. Generalizations and applications of this structure theory are made to cyclic extensions of prime degree, to square (and pth power) factor groups, to generalized quaternion ...
Brown, Ron, Warner, Hoyt D.
openaire   +1 more source

Higher derivative three-form gauge theories and their supersymmetric extension

open access: yesJournal of High Energy Physics, 2018
We investigate three-form gauge theories with higher derivative interactions and their supersymmetric extensions in four space-time dimensions. For the bosonic three-form gauge theories, we show that derivatives on the field strength of the 3-form gauge ...
Muneto Nitta, Ryo Yokokura
doaj   +1 more source

Application of k-means and Gaussian mixture model for classification of seismic activities in Istanbul [PDF]

open access: yesNonlinear Processes in Geophysics, 2012
Two unsupervised pattern recognition algorithms, k-means, and Gaussian mixture model (GMM) analyses have been applied to classify seismic events in the vicinity of Istanbul. Earthquakes, which are occurring at different seismicity rates and extensions of
E. Dogan   +3 more
doaj   +1 more source

Generalized trigonometric curve and its spline

open access: yesNihon Kikai Gakkai ronbunshu, 2021
On the extensions of the cubic Bézier curve with four control points, to connect multiple segments with required continuity has been strongly intended and for example, tangent and curvature continuity at the start and end points are guaranteed ...
Kenjiro T. MIURA   +3 more
doaj   +1 more source

Revisiting Stability Criteria in Ball‐Milled High‐Entropy Alloys: Do Hume–Rothery and Thermodynamic Rules Equally Apply?

open access: yesAdvanced Engineering Materials, Volume 27, Issue 6, March 2025.
The stability criteria affecting the formation of high‐entropy alloys, particularly focusing in supersaturated solid solutions produced by mechanical alloying, are analyzed. Criteria based on Hume–Rothery rules are distinguished from those derived from thermodynamic relations. The formers are generally applicable to mechanically alloyed samples.
Javier S. Blázquez   +5 more
wiley   +1 more source

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