On finiteness of $cup_nge 1 operatornameAss_R (R/I^n)$$M$ is $bigcap operatornameAss(M)$-primaryUnion of Associated Primes being finite.Associated primes of a quotient module.Projective dimension zero or infinityDepth zero module and $R$-regular elementIf $P in operatornameAssM$, then $R/P subset M$.Equivalence of two definitions of primary idealsConverse of a commutative algebra theorem related to associated prime idealsPathological examples of finitely generated modulesIf $ operatornameAss(M)= operatornameAssh(M)$, then $M$ is a Cohen-Macaulay $R$-module?

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On finiteness of $cup_nge 1 operatornameAss_R (R/I^n)$


$M$ is $bigcap operatornameAss(M)$-primaryUnion of Associated Primes being finite.Associated primes of a quotient module.Projective dimension zero or infinityDepth zero module and $R$-regular elementIf $P in operatornameAssM$, then $R/P subset M$.Equivalence of two definitions of primary idealsConverse of a commutative algebra theorem related to associated prime idealsPathological examples of finitely generated modulesIf $ operatornameAss(M)= operatornameAssh(M)$, then $M$ is a Cohen-Macaulay $R$-module?













1












$begingroup$


Let $I$ be an ideal of a commutative noetherian ring $R$.



How to prove that $bigcup_nge 1 operatornameAss_R (R/I^n)$ is finite ?



I am aware of Brodmann's result about Asymptotic stability of $operatornameAss_R(M/I^nM)$ for finitely generated module $M$ over commutative Noetherian ring $R$ , but I am trying to prove the claim in a direct, elementary way. I am, of course, allowed to use primary decomposition.



I can see that $Ass_R (bigoplus_n ge 1 R/I^n)=bigcup_nge 1 operatornameAss_R (R/I^n)$, however since $bigoplus_n ge 1 R/I^n$ is not finitely generated, I'm not sure if it is helpful here or not ...



Please help










share|cite|improve this question











$endgroup$
















    1












    $begingroup$


    Let $I$ be an ideal of a commutative noetherian ring $R$.



    How to prove that $bigcup_nge 1 operatornameAss_R (R/I^n)$ is finite ?



    I am aware of Brodmann's result about Asymptotic stability of $operatornameAss_R(M/I^nM)$ for finitely generated module $M$ over commutative Noetherian ring $R$ , but I am trying to prove the claim in a direct, elementary way. I am, of course, allowed to use primary decomposition.



    I can see that $Ass_R (bigoplus_n ge 1 R/I^n)=bigcup_nge 1 operatornameAss_R (R/I^n)$, however since $bigoplus_n ge 1 R/I^n$ is not finitely generated, I'm not sure if it is helpful here or not ...



    Please help










    share|cite|improve this question











    $endgroup$














      1












      1








      1





      $begingroup$


      Let $I$ be an ideal of a commutative noetherian ring $R$.



      How to prove that $bigcup_nge 1 operatornameAss_R (R/I^n)$ is finite ?



      I am aware of Brodmann's result about Asymptotic stability of $operatornameAss_R(M/I^nM)$ for finitely generated module $M$ over commutative Noetherian ring $R$ , but I am trying to prove the claim in a direct, elementary way. I am, of course, allowed to use primary decomposition.



      I can see that $Ass_R (bigoplus_n ge 1 R/I^n)=bigcup_nge 1 operatornameAss_R (R/I^n)$, however since $bigoplus_n ge 1 R/I^n$ is not finitely generated, I'm not sure if it is helpful here or not ...



      Please help










      share|cite|improve this question











      $endgroup$




      Let $I$ be an ideal of a commutative noetherian ring $R$.



      How to prove that $bigcup_nge 1 operatornameAss_R (R/I^n)$ is finite ?



      I am aware of Brodmann's result about Asymptotic stability of $operatornameAss_R(M/I^nM)$ for finitely generated module $M$ over commutative Noetherian ring $R$ , but I am trying to prove the claim in a direct, elementary way. I am, of course, allowed to use primary decomposition.



      I can see that $Ass_R (bigoplus_n ge 1 R/I^n)=bigcup_nge 1 operatornameAss_R (R/I^n)$, however since $bigoplus_n ge 1 R/I^n$ is not finitely generated, I'm not sure if it is helpful here or not ...



      Please help







      ring-theory commutative-algebra modules noetherian primary-decomposition






      share|cite|improve this question















      share|cite|improve this question













      share|cite|improve this question




      share|cite|improve this question








      edited Mar 18 at 5:59







      user521337

















      asked Mar 16 at 9:48









      user521337user521337

      1,2061417




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