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Lengths on semigroups and groups |
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| Authors: | Ralph Kopperman |
| Affiliation: | (1) Department of Mathematics, City College of New York, 10031 New York, New York |
| Abstract: | We give a characterization of those semigroups with topology arising from a collection of left sub-invariant pseudometrics or quasimetrics. We also characterize those with topology arising from sub-invariant pseudometrics or quasimetrics. |
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