Results 31 to 40 of about 507,636 (319)
Explicit Fermi Coordinates and Tidal Dynamics in de Sitter and Goedel Spacetimes [PDF]
, 2005 Fermi coordinates are directly constructed in de Sitter and Goedel spacetimes and the corresponding exact coordinate transformations are given explicitly.
A. Lichnerowicz +13 more
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Multiinstantons in curvilinear coordinates [PDF]
, 1999 The 'tHooft's 5N-parametric multiinstanton solution is generalized to curvilinear coordinates. Expressions can be simplified by a gauge transformation that makes $\eta$-symbols constant in the vierbein formalism.
't Hooft +11 more
core +5 more sources
On the generalized Jacobi equation. [PDF]
, 2007 The standard text-book Jacobi equation (equation of geodesic deviation) arises by linearizing the geodesic equation around some chosen geodesic, where the linearization is done with respect to the coordinates and the velocities.
Perlick, Volker
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Modeling Flexible Bodies in Multibody Systems in Joint-Coordinates Formulation Using Spatial Algebra
Advances in Mechanical Engineering, 2014 This paper presents an efficient approach of using spatial algebra operator to formulate the kinematic and dynamic equations for developing capabilities to model flexible bodies within general purpose multibody dynamics solver.
Mohamed A. Omar
doaj +1 more source
European Physical Journal C: Particles and Fields, 2023 In this work, a generalized framework of the post-quasistatic approximation in higher dimensional non-comoving coordinates is presented. We study the evolution of adiabatically radiating and dissipative fluid configuration in higher dimensional post ...
A. Zahra, S. A. Mardan, I. Noureen
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, 2010 We extend the notion of Fermi coordinates to a generalized definition in which the highest orders are described by arbitrary functions. From this definition rises a formalism that naturally gives coordinate transformation formulae.
B. Coll +27 more
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Generalized modal reduction method for the dynamic analysis of rotating mechanical systems
Applied and Computational Mechanics, 2020 The paper proposes modal reduction method of the dynamic systems composed of linear nonconservative subsystems coupled by nonlinear discrete couplings.
Zeman V., Hlaváč Z.
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Generalized uncertainty principle effects in the Hořava-Lifshitz quantum theory of gravity
Nuclear Physics B, 2022 The Wheeler-DeWitt equation for a Kantowski-Sachs metric in Hořava-Lifshitz gravity with a set of coordinates in minisuperspace that obey a generalized uncertainty principle is studied.
H. García-Compeán, D. Mata-Pacheco
doaj +1 more source
Arbitrary Dimensional Schwarzschild-FRW Black Holes
, 2004 The metric of arbitrary dimensional Schwarzschild black hole in the background of Friedman-Robertson-Walker universe is presented in the cosmic coordinates system.
Chang Jun Gao +6 more
core +1 more source
Construction of Developable Surface with Geodesic or Line of Curvature Coordinates
Journal of New Theory, 2021 In this paper, a developable surface with geodesic or line of curvature coordinates is constructed in the Euclidean 3-space. A developable surface is coordinated by two families of parametric curves, base curves (directrices) and lines (rulings).
Nabil Althibany
doaj +1 more source