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R-endomorphisms fixing essential ideals need not be automorphisms |
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| Authors: | J.W. Brewer D.C. Lantz L.R. Le Riche |
| Affiliation: | 1. University of Kansas , Lawrence, Kansas, 66045, U.S.A;2. Colgate University , Hamilton, New York, 13346, U.S.A;3. University of Stellenbosch , Stellenbosch, 7600, Republic of South Africa |
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