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On the Bar-radical of Jordan Baric Algebras
Authors:J. C. M. Ferreira  H. Guzzo Jr.
Affiliation:1. Centro de Matemática, Computa??o e Cogni??o, Universidade Federal do ABC, BR-09210-170, Santo André, Brazil
2. Instituto de Matemática e Estatística, Universidade de S?o Paulo, Rua do Mat?o, 1010, BR-05508-090, S?o Paulo, Brazil
Abstract:In this paper, we prove that if (U, w) is a finite dimensional Jordan baric algebra such that 
$$text{rad}(U)subseteq(text{bar}(U))^3$$
then, 
$$text{rad}(U)=R(U)cap(text{bar}(U))^3$$
, where R(U) is the nilradical (maximal nil ideal) of U. We also give conditions so that 
$$text{rad}(U)subseteq (text{bar}(U))^3$$
and an example showing that such conditions are necessary. Received: May 2, 2005. Revised: October 22, 2006.
Keywords:Primary 17D92
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