Abstract
We endow any proper A-convex H*-algebra (E, τ) with a locally pre-C*-topology. The latter is equivalent to that introduced by the pre C*-norm given by Ptàk function when (E, τ) is a Q-algebra. We also prove that the algebra of complex numbers is the unique proper locally A-convex H*-algebra which is barrelled and Q-algebra.
Similar content being viewed by others
References
Allan, G.R.: A spectral theory for locally convex alebras, Proc. London Math. Soc., (3) 15 (1965), 399–421
Ambrose, W.: Structure theorems for a special class of Banach algebras, Trans. Amer. Math. Soc., 57 (1945), 364–386
Bonsall, F.F., Duncan, J.: Complete normed algebras, Ergebnisse der Mathematik und ihrer Grenzgebiete, Band 80, Springer-Verlag, New York-Heidelberg, 1973
El Kinani, A.: On locally pre-C*-Algebra Structures in locally m-Convex H*-Algebras, Turkish J. Math., 26 (2002), no. 3, 263–271
Fragoulopoulou, M.: Topological algebras with involution, North-Holland Mathematics Studies, 200, Elsevier Science B.V., Amsterdam, 2005
Haralampidou, M.: On locally convex H*-algebras, Math. Japon., 38 (1993), no. 3, 451–460
Mallios, A.: Topological algebras. Selected topics, North-Holland Mathematics Studies, 124. Notas de Matemática [Mathematical Notes], 109, North-Holland Publishing Co., Amsterdam, 1986
Michael, E.A.: Locally multiplicatively-convex topological algebras, Mem. Amer. Math. Soc., 11 (1952), (Reprinted 1968)
Tsertos, Y.: Representations and extensions of positive functionals on *-algebras, Boll. Un. Mat. Ital., B (7) 8 (1994), no. 3, 541–555
Author information
Authors and Affiliations
Corresponding author
Rights and permissions
About this article
Cite this article
El Kinani, A. On locally A-convex H*-algebras. Rend. Circ. Mat. Palermo 57, 229–238 (2008). https://doi.org/10.1007/s12215-008-0016-5
Received:
Accepted:
Published:
Issue Date:
DOI: https://doi.org/10.1007/s12215-008-0016-5
Keywords
- Locally A-convex H*-algebra
- Locally uniformly A-convex H*-algebra
- Locally pre- C*-algebra
- Q-algebra
- Barrelled algebra