Results 31 to 40 of about 7,584 (267)
On magnetic guidance of charged particles
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
Knot invariants from Virasoro related representation and pretzel knots
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
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Remarks on rotating shallow-water magnetohydrodynamics [PDF]
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
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Transmission of low-energy scalar waves through a traversable wormhole
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
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Generic automorphisms of fields
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
Generalized background-field method [PDF]
The graphical method discussed previously can be used to create new gauges not reachable by the path-integral formalism. By this means a new gauge is designed for more efficient two-loop QCD calculations. It is related to but simpler than the ordinary background-field gauge, in that even the triple-gluon vertices for internal lines contain only four ...
Feng, Y. J., Lam, C. S.
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Fractional Mathieu Equation with Two Fractional Derivatives and Some Applications
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
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4D spin-2 fields from 5D Chern-Simons theory
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
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Teleparallel axions and cosmology
We consider the most general teleparallel theory of gravity whose action is a linear combination of the five scalar invariants which are quadratic in the torsion tensor.
Manuel Hohmann, Christian Pfeifer
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ABSTRACT Background Fertility preservation (FP) is increasingly integrated into the care of pediatric patients exposed to gonadotoxic therapy or conditioning for hematopoietic stem cell transplantation (HSCT), yet perioperative data in infants and toddlers remain scarce.
Kerstin Saalabian +13 more
wiley +1 more source

