Abstract and Applied Analysis

Abstract and Applied Analysis / 2001 / Article

Open Access

Volume 6 |Article ID 620768 | https://doi.org/10.1155/S1085337501000458

Carroll Guillory, "Douglas algebras without maximal subalgebra and without minimal superalgebra", Abstract and Applied Analysis, vol. 6, Article ID 620768, 11 pages, 2001. https://doi.org/10.1155/S1085337501000458

Douglas algebras without maximal subalgebra and without minimal superalgebra

Received25 Feb 2001


We give several examples of Douglas algebras that do not have any maximal subalgebra. We find a condition on these algebras that guarantees that some do not have any minimal superalgebra. We also show that if A is the only maximal subalgebra of a Douglas algebra B, then the algebra A does not have any maximal subalgebra.

Copyright © 2001 Hindawi Publishing Corporation. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

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