Results 11 to 20 of about 543,335 (289)
The Mathematics of Desert: Merit, Fit, and Well-Being
Philosophies, 2022 Here, we argue for a mathematical equation that captures desert. Our procedure consists of setting out principles that a correct equation must satisfy and then arguing that our set of equations satisfies them.
Stephen Kershnar, Michael Tooley
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An Intrinsic Version of the k-Harmonic Equation
Mathematics, 2023 The notion of k-harmonic curves is associated with the kth-order variational problem defined by the k-energy functional. The present paper gives a geometric formulation of this higher-order variational problem on a Riemannian manifold M and describes a generalized Legendre transformation defined from the kth-order tangent bundle TkM to the cotangent ...
Lígia Abrunheiro, Margarida Camarinha
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Thermodynamical Properties of Apparent Horizon in Warped DGP Braneworld [PDF]
, 2007 In this paper we first obtain Friedmann equations for the $(n-1)$-dimensional brane embedded in the $(n+1)$-dimensional bulk, with intrinsic curvature term of the brane included in the action (DGP model).
Adler +44 more
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Intrinsic time gravity and the Lichnerowicz–York equation [PDF]
Classical and Quantum Gravity, 2013 We investigate the effect on the Hamiltonian structure of general relativity of choosing an intrinsic time to fix the time slicing. 3-covariance with momentum constraint is maintained, but the Hamiltonian constraint is replaced by a dynamical equation for the trace of the momentum.
Murchadha, Niall Ó. +2 more
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Intrinsic rotation in tokamaks: theory [PDF]
, 2015 Self-consistent equations for intrinsic rotation in tokamaks with small poloidal magnetic field $B_p$ compared to the total magnetic field $B$ are derived.
Barnes, Michael, Parra, Felix I.
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A Rich Example of Geometrically Induced Nonlinearity: From Rotobreathers and Kinks to Moving Localized Modes and Resonant Energy Transfer [PDF]
, 2004 We present an experimentally realizable, simple mechanical system with linear interactions whose geometric nature leads to nontrivial, nonlinear dynamical equations.
A. R. Bishop +6 more
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Geometrically Nonlinear Analysis for Elastic Beam Using Point Interpolation Meshless Method
Shock and Vibration, 2019 The intrinsic beam theory, as one of the exact beam formulas, is quite suitable to describe large deformation of the flexible curved beam and has been widely used in many engineering applications. Owing to the advantages of the intrinsic beam theory, the
Cheng He, Xinhai Wu, Tao Wang, Huan He
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Nontrivial RR two-form field strength and SU(3)-structure [PDF]
, 2003 We discuss how in the presence of a nontrivial RR two-form field strength and nontrivial dilaton the conditions of preserving supersymmetry on six-dimensional manifolds lead to generalized monopole and Killing spinor equations.
Kaste, Peter +3 more
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The Force Between Two Sliding Bodies When Observed from a Third Moving Body
Tribology Online, 2011 This paper pertains to the observations of the sliding friction force from different moving bodies. The paper derives the equations required to predict the forces on the free-body diagrams of two sliding bodies when observed from a third moving body. The
Don W. Perumean
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Precise prediction of dielectric property for CaZrO3 ceramic [PDF]
Journal of Advanced Dielectrics, 2018 As for CaZrO3 (CZ) ceramic, the reported dielectric property values, especially dielectric constants, were much different from 23 to 32, which is reliable and credible? Without precise property data, CZ can’t be further developed and utilized accurately.
Chao Xing +3 more
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