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Relativistic quantum geometry from a 5D geometrical vacuum: Gravitational waves from preinflation
(Elsevier B.V., 2019-09)
In this work we introduce Relativistic Quantum Geometry (RQG) on a Modern Kaluza–Klein theory by studying the boundary conditions on a extended Einstein–Hilbert action for a 5D vacuum defined on a 5D (background) Riemannian ...
Extended Hamilton-Jacobi Theory, Symmetries and Integrability by Quadratures
(Multidisciplinary Digital Publishing Institute, 2021-06)
In this paper, we study the extended Hamilton–Jacobi Theory in the context of dynamical systems with symmetries. Given an action of a Lie group G on a manifold M and a G-invariant vector field X on M, we construct complete ...
Algorithms of Intrinsic Complexity for Point Searching in Compact Real Singular Hypersurfaces
(Springer, 2012-02)
For a real square-free multivariate polynomial F, we treat the general problem of finding real solutions of the equation F=0, provided that the real solution set {F=0}ℝ is compact. We allow that the equation F=0 may have ...
Non-linear buckling and postbuckling behavior of thin-walled beams considering shear deformation
(Pergamon-Elsevier Science Ltd, 2008-06)
The static stability of thin-walled composite beams, considering shear deformation and geometrical non-linear coupling, subjected to transverse external force has been investigated in this paper. The theory is formulated ...
Strongly smooth paths of idempotents
(Elsevier, 2011)
Conserved charges in timelike warped AdS3 spaces
(American Physical Society, 2015-06)
We consider the timelike version of warped anti-de Sitter space (WAdS), which corresponds to the three-dimensional section of the Gödel solution of four-dimensional cosmological Einstein equations. This geometry presents ...
Noncommutativity in (2+1)-dimensions and the Lorentz group
(American Physical Society, 2012-11)
In this article we considered models of particles living in a three-dimensional space-time with a nonstandard noncommutativity induced by shifting canonical coordinates and momenta with generators of a unitary irreducible ...
Nutrient partitioning and stoichiometry in soybean: A synthesis-analysis
(2017-01)
On-farm attainable soybean yields are primarily limited by nutrient and water supply. High-yielding soybeans is related to high nutrient uptake. A proposed theoretical framework underpinning yield formation includes plant ...
The DIRAC code for relativistic molecular calculations
(American Institute of Physics, 2020-05)
DIRAC is a freely distributed general-purpose program system for one-, two-, and four-component relativistic molecular calculations at the level of Hartree?Fock, Kohn?Sham (including range-separated theory), multiconfigurational ...
Lower complexity bounds for interpolation algorithms
(Academic Press Inc Elsevier Science, 2011-04)
We introduce and discuss a new computational model for the HermiteLagrange interpolation with nonlinear classes of polynomial interpolants. We distinguish between an interpolation problem and an algorithm that solves it. ...