Results 21 to 30 of about 1,718,501 (292)
Conformally Coupled Induced Gravity with Gradient Torsion [PDF]
, 1999 It is found that conformally coupled induced gravity with gradient torsion gives a dilaton gravity in Riemann geometry. In the Einstein frame of the dilaton gravity the conformal symmetry is hidden and a non-vanishing cosmological constant is not ...
Yoon, Yongsung
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Methods for Calculating Empires in Quasicrystals
Crystals, 2017 This paper reviews the empire problem for quasiperiodic tilings and the existing methods for generating the empires of the vertex configurations in quasicrystals, while introducing a new and more efficient method based on the cut-and-project technique ...
Fang Fang, Dugan Hammock, Klee Irwin
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Time dependent hydraulic falls and trapped waves over submerged obstructions [PDF]
, 2014 We consider the classical problem of a free surface flowing past one or more disturbances in a channel. The fluid is assumed to be inviscid and incompressible, and the flow, irrotational.
Page, Charlotte, Parau, Emilian
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Quasicrystal Tilings in Three Dimensions and Their Empires
Crystals, 2018 The projection method for constructing quasiperiodic tilings from a higher dimensional lattice provides a useful context for computing a quasicrystal’s vertex configurations, frequencies, and empires (forced tiles).
Dugan Hammock, Fang Fang, Klee Irwin
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Flavour-kinematics duality for Goldstone modes
Journal of High Energy Physics, 2022 Three scalar effective field theories have special properties in terms of non-linear symmetries, soft limits and on-shell constructability that arise from their Goldstone nature: the non-linear σ-model, multi-DBI theory and the special Galileon.
Dijs de Neeling +2 more
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Effective action for non-geometric fluxes duality covariant actions
Journal of High Energy Physics, 2017 The (heterotic) double field theories and the exceptional field theories are manifestly duality covariant formulations, describing low-energy limit of various super-string and M-theory compactifications.
Kanghoon Lee +2 more
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Unavoidable Conflict Between Massive Gravity Models and Massive Topological Terms
, 2004 Massive gravity models in 2+1 dimensions, such as those obtained by adding to Einstein's gravity the usual Fierz-Pauli, or the more complicated Ricci scalar squared ($R^2$), terms, are tree level unitary.
ANTONIO ACCIOLY +3 more
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A Comparative Study of the Parker Instability under Three Models of the Galactic Gravity [PDF]
, 1998 To examine how non-uniform nature of the Galactic gravity might affect length and time scales of the Parker instability, we took three models of gravity, uniform, linear and realistic ones.
Appenzeller I. +13 more
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The information metric on the moduli space of instantons with global symmetries
Physics Letters B, 2016 In this note we revisit Hitchin's prescription [1] of the Fisher metric as a natural measure on the moduli space of instantons that encodes the space–time symmetries of a classical field theory. Motivated by the idea of the moduli space of supersymmetric
Emanuel Malek +2 more
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Design of Service Robot for Wearing and Taking off Footwear [PDF]
E3S Web of Conferences, 2020 In order to realize the automation and integration of wearing and taking off shoes and socks, a service robot for wearing and taking off footwear was designed to help persons living with waist or leg problems in this paper.
Li Yunsheng +4 more
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