KASH3 Ref - MatrixAlgebra

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| ### Function MatrixAlgebra ( fld^fin F, fld^fin E ) -> alg^mat, map() ### Optional Arguments
Results | elt-ord^rat |  | 1 <= Results <= 2
### Description Given a finite field F and a subfield E of F such that F is of degree n over E, return the matrix algebra A of degree n over E which is isomorphic to F, together with the isomorphism from F onto A such that the generator of F over E is mapped to the generator of A. ### Examples x_E:=FiniteField(5); x_Ey:=PolynomialAlgebra(x_E); x_F:= Extension(x_E,x_Ey.1^2+2); MatrixAlgebra(x_F,x_E);
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