Alfred H. Clifford
Alfred Hoblitzelle Clifford (July 11, 1908 – December 27, 1992) was an American mathematician who is known for Clifford theory and for his work on semigroups. The Alfred H. Clifford Mathematics Research Library at Tulane University is named after him.
- Clifford, Alfred Hoblitzelle; Preston, G. B. (1961), The algebraic theory of semigroups. Vol. I, Mathematical Surveys, No. 7, Providence, R.I.: American Mathematical Society, ISBN 978-0-8218-0272-4, MR 0132791