Let be a commutative noetherian ring, and let (resp. ) be a Serre(resp. localizing) subcategory of the category of -modules. If is an unbounded complex of -modules Tor-perpendicular to and is an integer, then is in for each -module in if and only if is in for each prime ideal such that is in , where is the residue field at . As an application, we show that for any -module , is in for each prime ideal such that is in if and only if is in for each cyclic -module in . We also obtain some new characterizations of regular and Gorenstein rings in the case of consists of finite modules with supports in a specialization-closed subset of .

生成讲解博客的中文版本

生成AI智能校验的中文版本