ideals of a matrix ring [closed]

asked 2016-12-09 18:13:22 +0200

xhimi gravatar image

If $I$ is an ideal of $R$, I would need to use something like 

MatrixSpace(I, m, n)

However, the above doesn't work because $I$ is not a ring. How can I get all the matrices with entries from a specific ideal? Or even more generally, matrices with entries from a subset?

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Closed for the following reason duplicate question by kcrisman
close date 2016-12-09 19:45:26.888967

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