Geodesic
The triple-norm extension problem: the nondegenerate complete case.
Studia Mathematica, Tome 136 (1999) no. 1, pp. 91-97 Cet article a éte moissonné depuis la source Institute of Mathematics Polish Academy of Sciences

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We prove that, if A is an associative algebra with two commuting involutions τ and π, if A is a τ-π-tight envelope of the Jordan Triple System T:=H(A,τ) ∩ S(A,π), and if T is nondegenerate, then every complete norm on T making the triple product continuous is equivalent to the restriction to T of an algebra norm on A.
DOI : 10.4064/sm-136-1-91-97
Keywords: Jordan triple systems, JB*-triples, norm extension problem 
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A. Moreno Galindo. The triple-norm extension problem: the nondegenerate complete case.. Studia Mathematica, Tome 136 (1999) no. 1, pp. 91-97. doi: 10.4064/sm-136-1-91-97

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