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February 3rd, 2015, 11:44 PM   #1
eka
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elementary divisor ring

Can anyone help me?
I have a problem with proving a theorem for my thesis.

Let R be a Hermite ring. If R/I is an elementary divisor ring, then R is an elementary divisor ring. Is it true? If that's true, I have no idea how to prove that lemma.

Please help me.

Last edited by skipjack; February 4th, 2015 at 02:46 AM.
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February 5th, 2015, 09:44 AM   #2
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What is "I"?
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