On the character space of Banach vector-valued function algebras

author

  • M. Abtahi School of Mathematics and Computer Sciences, ‎Damghan University‎, ‎Damghan‎, ‎P.O‎. ‎Box 36715-364‎, ‎Damghan‎, ‎Iran.
Abstract:

‎Given a compact space $X$ and a commutative Banach algebra‎ ‎$A$‎, ‎the character spaces of $A$-valued function algebras on $X$ are‎ ‎investigated‎. ‎The class of natural $A$-valued function algebras‎, ‎those whose characters can be described by means of characters of $A$ and‎ ‎point evaluation homomorphisms‎, ‎is introduced and studied‎. ‎For an‎ ‎admissible Banach $A$-valued function algebra $mathscr{A}$ on $X$‎, ‎conditions under which the character space $mathfrak{M}(mathscr{A})$‎ ‎is homeomorphic to $mathfrak{M}(mathfrak{A})times mathfrak{M}(A)$ are presented‎, ‎where $mathfrak{A}=C(X) capmathscr{A}$‎ ‎is the subalgebra of $mathscr{A}$ consisting of scalar-valued functions‎. ‎An illustration of the results is given by some examples.

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Journal title

volume 43  issue 5

pages  1195- 1207

publication date 2017-10-31

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