Abstract:
A tangential trapezoid, also called a circumscribed trapezoid, is a trapezoid whose four sides are all tangent to a circle within the trapezoid: the in-circle or inscribed circle. In this paper we classify all planar four-body central configurations, where the four bodies are at the vertices of a tangential trapezoid.
Keywords:
convex central configuration, four-body problem, tangential trapezoid.
The first author is partially supported by the Ministerio de Economía, Industria y Competividad,
Agencia Estatal de Investigación grant MTM 2016-77278-P (FEDER), the Agència de Gestió
d'Ajuts Universitaris i de Recerca grant 2017 SGR 1617, and the H2020 European Research
Council grant MSCA-RISE-2017-777911. The second author is partially supported by Fundamental
Research Funds for the Central Universities (NO.XDJK2015C139), China Scholarship Council
(Number 201708505030).
This publication is cited in the following 1 articles:
Llibre Jaume, “Central configurations of the circular restricted 4-body problem with three equal primaries in the collinear central configuration of the-3 body problem”, Trends Comput Sci Inf Technol, 2021, 001