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Automorphisms of the semigroup of nonnegative invertible matrices of order 2 over rings |
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| Authors: | E. I. Bunina L. V. Tupikina |
| Affiliation: | 1. M. V. Lomonosov Moscow State University, Moscow, Russia |
| Abstract: | In this paper, we describe automorphisms of the semigroup G2(R) of nonnegative invertible matrices if R is a (not necessarily commutative) partially ordered ring without zero divisors with 1/n for some natural number n?>?1. |
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