Results 1 to 10 of about 22,193,544 (297)

AdS N-body problem at large spin [PDF]

open access: yesJournal of High Energy Physics
Motivated by the problem of multi-twist operators in general CFTs, we study the leading-twist states of the N-body problem in AdS at large spin J. We find that for the majority of states the effective quantum-mechanical problem becomes semiclassical with
Petr Kravchuk, Jeremy A. Mann
doaj   +2 more sources

New Classes of Spatial Central Configurations for N + N + 2-Body Problem

open access: yesAbstract and Applied Analysis, 2012
Under arbitrary masses, in this paper, we discuss the existence of new families of spatial central configurations for the N + N + 2-body problem, 𝑁≥2.
Liu Xuefei   +3 more
doaj   +1 more source

Body composition in Serbian police officers [PDF]

open access: yesNBP: Nauka, bezbednost, policija, 2022
Background. Police work belongs to the category of exceptionally responsible and psychologically , socially and physically strenuous and stressful professions.
Vuković Marko   +3 more
doaj   +1 more source

Implementation of fast algorithms for 2D flow simulation using vortex particle methods

open access: yesУчёные записки Казанского университета: Серия Физико-математические науки
Vortex particle methods of computational hydrodynamics are widely employed by engineers to solve the problems of flow simulation and estimation of unsteady hydrodynamic loads acting on bodies.
E. P. Ryatina   +3 more
doaj   +1 more source

On an Application of the Hill Approach to the General Case of the Three-body Problem

open access: yesThe Astronomical Journal
In this work, we use the energy and angular momentum integrals as a resource for applying Hill’s approach to the general three-body problem. As a result, we obtain theorems on the Lagrange stability and Hill stability in the general three-body problem ...
Stepan P. Sosnitskii
doaj   +1 more source

Numerical Determination of the Gravitational Cross Sections of an Accreting Binary

open access: yesThe Astrophysical Journal
A significant amount of work has been devoted to the study of small binary solar system objects. The majority of these binaries, especially among the near-Earth or main belt asteroids, have small radius ratios, implying a large difference in size between
Zachary Murray
doaj   +1 more source

Analytic Five-Body Gerono Lemniscata Choreography

open access: yesJournal of Mathematical Sciences and Modelling
The trajectories and interaction forces of five bodies with equal masses are analytically described. The bodies follow a choreographic motion in a figure of eight, Gerono lemniscata periodic orbit without collisions.
Manuel Fernandez-guasti
doaj   +1 more source

New Insight of Time-transformed Symplectic Integrator. I. Hybrid Methods for Hierarchical Triples

open access: yesThe Astrophysical Journal
Accurate N -body simulations of multiple systems such as binaries and triples are essential for understanding the formation and evolution of interacting binaries and binary mergers, including gravitational wave sources, blue stragglers, and X-ray ...
Long Wang
doaj   +1 more source

Configurações centrais planares do tipo pipa

open access: yesRevista Brasileira de Ensino de Física
Neste artigo estudamos configurações centrais planares do tipo pipa para o problema de quatro corpos. Mostramos a existência de tais configurações para as pipas côncavas, quando uma das massas está no interior do triângulo formado pelas outras três ...
Luis Fernando Mello   +2 more
doaj   +1 more source

Searching for the closest-pair in a query translate

open access: yesJournal of Computational Geometry, 2020
We consider a range-search variant of the closest-pair problem. Let $\varGamma$ be a fixed shape in the plane. We are interested in storing a given set of $n$ points in the plane in some data structure such that for any specified translate of $\varGamma$
Jie Xue   +3 more
doaj   +1 more source

Home - About - Disclaimer - Privacy