Results 31 to 40 of about 165,991,386 (194)

Abduction of Generalizations [PDF]

open access: yes, 2012
Abduction of generalizations is the process in which explanatory hypotheses are formed for generalizations such as “pineapples taste sweet” or “rainbows appear when the sun breaks through the rain”. This phenomenon has received little attention in formal
Frederik Van De Putte   +4 more
core   +1 more source

On magnetic guidance of charged particles

open access: yesPhysics Letters B, 2016
High precision beta decay experiments with polarized neutrons, employing magnetic guiding fields for the decay electrons in combination with energy dispersive detectors, initiated detailed studies of the point spread function (PSF) for homogeneous ...
H. Backe
doaj   +1 more source

Remarks on rotating shallow-water magnetohydrodynamics [PDF]

open access: yesNonlinear Processes in Geophysics, 2013
We show how the rotating shallow-water MHD model, which was proposed in the solar tachocline context, may be systematically derived by vertical averaging of the full MHD equations for the rotating magneto fluid under the influence of gravity.
V. Zeitlin
doaj   +1 more source

Knot invariants from Virasoro related representation and pretzel knots

open access: yesNuclear Physics B, 2015
We remind the method to calculate colored Jones polynomials for the plat representations of knot diagrams from the knowledge of modular transformation (monodromies) of Virasoro conformal blocks with insertions of degenerate fields.
D. Galakhov   +3 more
doaj   +1 more source

Generalizations and Refinements of Hermite-Hadamard's Inequality [PDF]

open access: yes, 2001
In this article, with the help of concept of the harmonic sequence of polynomials, the well known Hermite-Hadamard’s inequality for convex functions is generalied to the cases with bounded derivatives of n-th order, including the so-called n-convex ...
Qi, Feng, Yang, Qiao, Wei, Zong-Li
core   +6 more sources

Transmission of low-energy scalar waves through a traversable wormhole

open access: yesEuropean Physical Journal C: Particles and Fields, 2020
We study the scattering of low-energy massless and massive minimally coupled scalar fields by an asymptotically flat traversable wormhole. We provide a comprehensive treatment of this problem offering analytic expressions for the transmission and ...
Bahareh Azad   +2 more
doaj   +1 more source

Generic automorphisms of fields

open access: yesAnnals of Pure and Applied Logic, 1997
It is shown that the theory of fields with an automorphism has a decidable model companion. In this paper, quantifier-elimination is established in a natural language. The theory is intimately connected (via fixed fields) to Ax's theory of pseudofinite fields and analogues are obtained for most of Ax's classical results. Some indication is given of the
openaire   +1 more source

Topological fields with a generic derivation

open access: yesAnnals of Pure and Applied Logic, 2023
42 pages. The definition of "open theory of topological fields" was revisited and changes were written accordingly.
Cubides-Kovacsics, Pablo   +1 more
openaire   +3 more sources

Fractional Mathieu Equation with Two Fractional Derivatives and Some Applications

open access: yesFractal and Fractional
The importance of this research comes from the several applications of the Mathieu equation and its generalizations in many scientific fields. Two models of fractional Mathieu equations are provided using Katugampola fractional derivatives in the sense ...
Ahmed Salem   +2 more
doaj   +1 more source

4D spin-2 fields from 5D Chern-Simons theory

open access: yesJournal of High Energy Physics, 2018
We consider a 5-dimensional Chern-Simons gauge theory for the isometry group of Anti-de-Sitter spacetime, AdS4+1 ≃ SO(4, 2), and invoke different dimensional reduction schemes in order to relate it to 4-dimensional spin-2 theories.
N. L. González Albornoz   +3 more
doaj   +1 more source

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