Rings and Ideals
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1.a) Let R be a ring with 1 and let S=M2(R). If I is an field of S, show that there is an ideal J of R such that I consists of all 2X2 matrices over J.
1 b) Use the result of 1 a) to prove the following question.
Let R be the ring of 2X2 matrices over reals; suppose that I is an ideal of R.
Show that I =(0) or I=R.
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Rings and ideals are investigated.
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1.a) Let R be a ring with 1 and let S= . If I is an ideal of S .show that there is an ideal J of R such that I consists of all 2X2 matrices over ...
Purchase this Solution
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