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Why a torsion free flat module over a discrete valuation ring is Cohen-Macaulay?

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    Dear unknown, do you want your modules to be finitely generated? Then they will be free in this case.2011-02-17
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    @Akhil Mathew..yes i need it..why this is true?2011-03-04
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    Dear unknown, torsion free modules over any PID are free (this follows from the structure theorem of f.g. modules over PIDS).2011-03-04
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    @AkhilMathew Hi: Do you think you could turn that into an answer? Thanks!2014-10-07

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