Results 81 to 90 of about 22,193,544 (297)
One-Dimensional Relativistic Self-Gravitating Systems
One of the oldest problems in physics is that of calculating the motion of N particles under a specified mutual force: the N-body problem. Much is known about this problem if the specified force is non-relativistic gravity, and considerable progress has ...
Robert B. Mann
doaj +1 more source
Computational Structure of the N-Body Problem [PDF]
Summary: This work considers tree algorithms for the N-body problem where the number of particles is on the order of a million. The main concern of this work is the organization and performance of these computations on parallel computers. This work introduces a formulation of the N-body problem as a set of recursive equations based on a few elementary ...
openaire +1 more source
Integrating an N-Body Problem with SDC and PFASST [PDF]
Vortex methods for the Navier–Stokes equations are based on a Lagrangian particle discretization, which reduces the governing equations to a first-order initial value system of ordinary differential equations for the position and vorticity of N particles.
Speck, R +6 more
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A Numerical Contribution to the Hierarchical Three-Body Problem [PDF]
The aim of this thesis is to provide a numerical investigation of the motions of the planar hierarchical three body problem, that we will regard as a perturbation of the planar two centre problem.
Legnaro, Edoardo
core
ABSTRACT Objective Building on our prior Behavioral Risk Factor Surveillance System analysis identifying adults aged 18–39 as the primary driver of the national increase in self‐reported cognitive disability, we examined factors associated with this rise using 2013–2024 U.S. BRFSS data. Methods We analyzed U.S.
Adam de Havenon +9 more
wiley +1 more source
On the stability of displaced two-body lunar orbits [PDF]
In a prior study, a methodology was developed for computing approximate large displaced orbits in the Earth-Moon circular restricted three-body problem (CRTBP)by the Moon-Sail two-body problem.
Simo, Jules, McInnes, Colin R.
core +3 more sources
On Parallel and Distributed N-Body Simulations
The N-body problem is a classic problem involving a system of N discrete bodies mutually interacting in a dynamical system. At any moment in time there are N(N−1)/2 such interactions occurring.
Alexander Brandt
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Deep Learning Pose Estimation for Phenotyping of Co‐Occurring Hyperkinetic Movement Disorders
ABSTRACT Objective To explore whether routine outpatient video combined with deep learning‐based pose estimation and clinically interpretable kinematic features can support multi‐label phenotyping of co‐occurring hyperkinetic movement disorders (HMDs).
Laura Cif +17 more
wiley +1 more source
C-cross products and a generalized mechanical N-body problem
For each finite dimensional real vector space X we construct a C*-algebra A graded by the lattice of all subspaces of X and we compute its quotient with respect to the algebra of compact operators.
Mondher Damak, Vladimir Georgescu
doaj
Exemplos de configurações centrais planares encaixantes
Neste artigo estudamos configurações centrais planares encaixantes para o problema de n corpos em mecânica celeste quando n = 4, n = 8 e n = 12. Determinamos condições suficientes para a existência de tais configurações com os corpos nos vértices de ...
Antonio Carlos Fernandes +2 more
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