We study the existence of Banach algebra structures on simple extensions of a unitary commutative Banach algebra. The link with the integrality of these extensions is studied. For any simple extension, a characterization of the existence of the Banach algebra norm making continuous the canonical injection is also given.
KINANI, SARA EL
"Banach algebra structure on simple extensions,"
Turkish Journal of Mathematics: Vol. 44:
6, Article 21.
Available at: https://journals.tubitak.gov.tr/math/vol44/iss6/21