Extending characters on semigroups

Ross, Kenneth A.

doi:10.1090/S0002-9939-1961-0132793-0

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)

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Extending characters on semigroups
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by Kenneth A. Ross

Proc. Amer. Math. Soc. 12 (1961), 988-990

DOI: https://doi.org/10.1090/S0002-9939-1961-0132793-0

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References

W. W. Comfort, The isolated points in the dual of a commutative semi-group, Proc. Amer. Math. Soc. 11 (1960), 227–233. MR 112910, DOI 10.1090/S0002-9939-1960-0112910-8
Edwin Hewitt and Herbert S. Zuckerman, The $l_1$-algebra of a commutative semigroup, Trans. Amer. Math. Soc. 83 (1956), 70–97. MR 81908, DOI 10.1090/S0002-9947-1956-0081908-4
Kenneth A. Ross, A note on extending semicharacters on semigroups, Proc. Amer. Math. Soc. 10 (1959), 579–583. MR 109185, DOI 10.1090/S0002-9939-1959-0109185-4