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matt grime
Apr16-06, 02:20 AM
Sci Advisor
HW Helper
P: 9,396
does that mean you've done the first question?

There is no harm in passing to the algebraic closure of your field if it helps you to think about it. Put everythin in jordan form, what can you say about the commuting matrices? just to give you some idea of how to use the difference between the minimal and characeristic poly.