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Strict topologies as topological algebras

Surjit Singh Khurana (2001)

Czechoslovak Mathematical Journal

Let X be a completely regular Hausdorff space, C b ( X ) the space of all scalar-valued bounded continuous functions on X with strict topologies. We prove that these are locally convex topological algebras with jointly continuous multiplication. Also we find the necessary and sufficient conditions for these algebras to be locally m -convex.

Swiss cheeses, rational approximation and universal plane curves

J. F. Feinstein, M. J. Heath (2010)

Studia Mathematica

We consider the compact plane sets known as Swiss cheese sets, which are a useful source of examples in the theory of uniform algebras and rational approximation. We develop a theory of allocation maps connected to such sets and we use this theory to modify examples previously constructed in the literature to obtain examples homeomorphic to the Sierpiński carpet. Our techniques also allow us to avoid certain technical difficulties in the literature.

Synthèse et algèbre de multiplicateurs de Re A ( D )

Jacqueline Détraz (1973)

Annales de l'institut Fourier

Soit Re A , l’espace de Banach des fonctions continues sur T qui sont parties réelles de fonctions de l’algèbre du disque A ( D ) . On étudie les ensembles de T de synthèse pour Re A et l’algèbre des multiplicateurs de Re A . On en déduit des théorèmes d’approximation dans A ( D ) par des produits de Blaschke.

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