213,093 research outputs found

    On a conjecture concerning some automatic continuity theorems

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    Let A and B be commutative locally convex algebras with unit. A is assumed to be a uniform topological algebra. Let h be an injective homomorphism from A to B. Under additional assumptions, we characterize the continuity of the homomorphism h^(-1) / Im(h) by the fact that the radical (or strong radical) of the closure of Im(h) has only zero as a common point with Im(h). This gives an answer to a conjecture concerning some automatic continuity theorems on uniform topological algebras.Comment: 5 page

    A real seminorm with square property is submultiplicative

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    A seminorm with square property on a real associative algebra is submultiplicativeComment: 3 page

    A remark on continuity of positive linear functionals on separable Banach *-algebras

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    Using a variation of the Murphy-Varopoulos Theorem, we give a new proof of the following R.J.Loy Theorem: Let A be a separable Banach*-algebra with center Z such that ZA has at most countable codimension, then every positive linear functional on A is continuous.Comment: 3 page

    On saturated uniformly A-convex algebras

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    Following ideas of A.C.Cochran, we give a suitable definition of a saturated uniformly A-convex algebra. In the m-convex case, such algebra is a uniform topological one.Comment: 6 page
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