On the existence of bi-pyramidal central configurations of the n + 2-body problem with an n-gon base

Abstract. In this paper we prove the existence of central con gurations of the n + 2{body problem where n equal masses are located at the vertices of a regular n{gon and the remaining 2 masses, which are not necessarily equal, are located on the straight line orthogonal to the plane containing the n{gon passing through its center. Here this kind of central con gurations is called bi{pyramidal central con gurations. In particular, we prove that if the masses mn+1 and mn+2 and their positions satisfy convenient relations, then the con guration is central. We give explicitly those relations.

Ultimos pasavolantes : (retratos sin retoques) / por Argos ; prólogo de Antonio Peña y Goñi.

Digitalización Vitoria-Gasteiz Archivos y Bibliotecas Julio 1994 18-57

Le whip-poor-will, ou Les pionniers de l'Orégon,

Mode of access: Internet.

Hunyadiak kora Magyarországon.

Bibliographical footnotes.

A fiatalkorúak támogatására hivatott jótékonycélú intézmények Magyarországon ... /

"A Magyar királyi Igazságügyminisztériumtól és a patronázs egyesületektöl nyert adatok alapján."