Vanishing of Ext-Functors and Faltings’ Annihilator Theorem for relative Cohen-Macaulay modules

Document Type : research paper


1 PhD student, Payame Noor University, Tehran, Iran

2 Assistant Professor, Payame Noor University, Tehran, Iran


et  be a commutative Noetherian ring,  and  two ideals of  and  a finite -module. In this paper, we have studied the vanishing and relative Cohen-Macaulyness of the functor for relative Cohen-Macauly filtered modules with respect to the ideal  (RCMF). We have shown that the for relative Cohen-Macaulay modules holds for any relative Cohen-Macauly module with respect to  with ........


Article Title [فارسی]

صفر شدن تابعگون Ext و قضیه پوچ‌ساز فالتینگز برای مدول‌های کوهن-مکالی نسبی

Authors [فارسی]

  • مریم مست ظهوری 1
  • خدیجه احمدی آملی 1
  • سعادت‌اله فرامرزی 2
1 دانشجوی دکتری گروه ریاضی، دانشگاه پیام نور، تهران، ایران
2 استادیار، گروه ریاضی، دانشگاه پیام نور، تهران، ایران
Abstract [فارسی]

فرض کنیم  یک حلقه جابجایی و نوتری،  a و b ایده‌آل‌هایی از R و M یک R-مدول متناهی باشد. صفر شدن و کوهن-مکالی نسبی بودن تابعگون Ext را روی مدول‌های کوهن-مکالی نسبی صافی شده نسبت به ایده‌آل a (به اختصار RCMF) مطالعه کرده‌ایم. نشان داده‌ایم ..... 

Keywords [فارسی]

  • تابعگون Ext
  • مدول‌های کوهمولوژی موضعی
  • مدول‌های کوهن-مکالی نسبی صافی شده
  • قضیه پوچ‌ساز فالتینگز
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