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Proceedings of the American Mathematical Society

Published by the American Mathematical Society since 1950, Proceedings of the American Mathematical Society is devoted to shorter research articles in all areas of pure and applied mathematics.

ISSN 1088-6826 (online) ISSN 0002-9939 (print)

The 2020 MCQ for Proceedings of the American Mathematical Society is 0.85.

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A commutative Banach algebra with factorization of elements but not of pairs
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by S. I. Ouzomgi PDF
Proc. Amer. Math. Soc. 113 (1991), 435-441 Request permission


We find a one-point Gleason part $\phi$ off the Šilov boundary of ${H^\infty }(\Delta )$ such that the maximal ideal ${M_\phi }$ factors but such that pairs do not factor in ${M_\phi }$.
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Additional Information
  • © Copyright 1991 American Mathematical Society
  • Journal: Proc. Amer. Math. Soc. 113 (1991), 435-441
  • MSC: Primary 46J15
  • DOI:
  • MathSciNet review: 1055776