FUNDAMENTALNAYA
I PRIKLADNAYA MATEMATIKA

(FUNDAMENTAL AND APPLIED MATHEMATICS)

2008, VOLUME 14, NUMBER 2, PAGES 69-100

**Automorphisms of the semigroup of invertible matrices with nonnegative
elements over commutative partially ordered rings**

E. I. Bunina

P. P. Semenov

Abstract

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We describe automorphisms of the semigroup $G$_{n}(R) of
invertible matrices with nonnegative coefficients in the case where
$R$ is
a commutative partially ordered ring containing $$**Q** and $n$³
3.

Location: http://mech.math.msu.su/~fpm/eng/k08/k082/k08204h.htm

Last modified: December 18, 2008