1
$\begingroup$

what does it mean, if you say, that the class of $\prod U_i$ in $R$ is an invariant of a module, where the $U_i$ are ideals in a ring $R$. I cannot find a definition. Thanks for help

  • 0
    this is mentioned e.j. in Lemma 1.4 on page 217: http://www.ams.org/journals/tran/1964-110-02/S0002-9947-1964-0156896-7/S0002-9947-1964-0156896-7.pdf2012-06-14
  • 1
    Refer to the topic in the title please.2012-06-14

1 Answers 1