One-point Gleason parts and point derivations in uniform algebras

نویسندگان

چکیده

It is shown that a uniform algebra can have nonzero bounded point derivation while having no nontrivial Gleason parts. Conversely, part nonzero, even possibly unbounded, derivations.

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ژورنال

عنوان ژورنال: Studia Mathematica

سال: 2023

ISSN: ['0039-3223', '1730-6337']

DOI: https://doi.org/10.4064/sm220729-12-12