## An abstract algebraic-topological approach to the notions of a first and second dual space. III.(English)Zbl 1361.46004

Summary: Here we continue to develop a concept, that generalizes the idea of the second dual space of a normed vector space in a fairly general way. As in the prequel, the main tool is to recognize the “first dual” as a means to the end of the second dual. Especially, we will easily prove here some essential statements on embeddings of noncommutative $$C^{*}$$-algebras in their second dual, whose analogues are known in the commutative setting.
For Part I see [Theory and applications of proximity, nearness and uniformity. Caserta: Dipartimento di Matematica, Seconda Università di Napoli; Rome: Aracne. 275–297 (2009; Zbl 1235.46007)], for Part II see [Int. J. Pure Appl. Math. 84, No. 5, 651–667 (2013)].

### MSC:

 46A20 Duality theory for topological vector spaces 46B10 Duality and reflexivity in normed linear and Banach spaces 46H15 Representations of topological algebras 46L05 General theory of $$C^*$$-algebras 46L10 General theory of von Neumann algebras

Zbl 1235.46007
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