KASH3 Ref - CoefficientRing

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| ### Function CoefficientRing ( ord^fun O ) -> rng ### Description The coefficient ring of the order O. ### Examples x_f5 := FiniteField(5); x_f5t := PolynomialAlgebra(x_f5); x_f5ty := PolynomialAlgebra(x_f5t); x_k := FunctionField(x_f5ty.1^4-x_f5t.1^5); x_O := MaximalOrderFinite(x_k); CoefficientRing(x_O);
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