Results 21 to 30 of about 15,333,834 (330)
TASI Lectures on Abelian and Discrete Symmetries in F-theory [PDF]
In F-theory compactifications, the abelian gauge sector is encoded in global structures of the internal geometry. These structures lie at the intersection of algebraic and arithmetic description of elliptic fibrations: While the Mordell--Weil lattice is ...
M. Cvetič, Ling Lin
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Classification of Spot-Welded Joints in Laser Thermography Data Using Convolutional Neural Networks
Spot welding is a crucial process step in various industries. However, classification of spot welding quality is still a tedious process due to the complexity and sensitivity of the test material, which drain conventional approaches to its limits.
Linh Kastner +6 more
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Vector Bundles and F Theory [PDF]
93 pp., harvmac. Section 4.4 has been extended with additional Comments relating F theory intermediate Jacobians to heterotic string ...
Friedman, Robert +2 more
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Discrete gauge groups in certain F-theory models in six dimensions [PDF]
A bstractWe construct six-dimensional (6D) F-theory models in which discrete ℤ5, ℤ4, ℤ3, and ℤ2 gauge symmetries arise. We demonstrate that a special family of “Fano 3-folds” is a useful tool for constructing the aforementioned models.
Y. Kimura
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The global gauge group structure of F-theory compactification with U(1)s [PDF]
We show that F-theory compactifications with abelian gauge factors generally exhibit a non-trivial global gauge group structure. The geometric origin of this structure lies with the Shioda map of the Mordell-Weil generators.
M. Cvetič, Ling Lin
semanticscholar +1 more source
Monopolist’s mark-up and the elasticity of substitution
This paper analyzes the mark-up of the price of a product over marginal costs for a monopolist using Appelbaum’s theoretical model. The profit maximization model of an industry that uses the monopolist’s product as its input is formulated. Our goal is to
Ilko Vrankić +2 more
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F-theory at constant coupling [PDF]
The subspace of the moduli space of F-theory on K3 over which the coupling remains constant develops new branches at special values of this coupling. These values correspond to fixed points under the SL(2,Z) duality group of the type IIB string. The branches contain points where K3 degenerates to orbifolds of the four-torus by Z_3,Z_4 and Z_6.
Dasgupta, Keshav, Mukhi, Sunil
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F-theory and orientifolds [PDF]
LaTeX file, 21 pages, references ...
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F-theory is a non-perturbative formulation of type IIB superstring theory which allows for the decoupling of gravity and for the formulation of GUT theories based on the gauge group E6. In this paper we explore F-theory models in which the low energy supersymmetric theory contains the particle content of three 27 dimensional representations of the ...
Callaghan, James C., King, Stephen F.
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Covariant formulation of f(Q) theory
In Symmetric Teleparallel General Relativity, gravity is attributed to the non-metricity. The so-called “coincident gauge” is usually taken in this theory so that the affine connection vanishes and the metric is the only fundamental variable.
Dehao Zhao
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