2 papers
math-ph2017
On the symmetric central configurations for the planar 1+4-body problem
Chunhua Deng, Shiqing Zhang
We study the planar symmetric central configurations of the -body problem where the symmetry axis does not contain any infinitesimal masses. Under certain assumptions we find…
math-ph2012
Planar Symmetric Concave Central Configurations in Four-body Problem
Chunhua Deng, Shiqing Zhang
In this paper, we consider the problem: given a symmetric concave configuration of four bodies, under what conditions is it possible to choose positive masses which make it central…