Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
4664851 | Acta Mathematica Scientia | 2008 | 6 Pages |
Abstract
Suppose F is a field, and n, p are integers with 1≤ p < n. Let Mnp(F) be the multiplicative semigroup of all n × n matrices over F, and let Mnp(F) be its subsemigroup consisting of all matrices with rank p at most. Assume that F and R are subsemigroups of Mnp(F) such that . A map f:F→R is called a homomorphism if f(AB)=f(A)f(B) for any A, B ∈ F. In particular, f is called an endomorphism if F = R. The structure of all homomorphisms from F to R (respectively, all endomorphisms of Mn(F)) is described.
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