论文标题
在回调戒指上得出Milnor的定理
Deriving Milnor's theorem on pullback rings
论文作者
论文摘要
米尔诺（Milnor）在回调环上的经典定理指出，回溯环上的投影模块类别等于由一个由投影模块组成的粘合三元组。我们证明了对派生类别水平的类似结果，在派生类别的水平上，等效性必须被势性代替。
The classical theorem of Milnor on pullback rings states that the category of projective modules over a pullback ring is equivalent to a certain category of gluing triples consisting of projective modules. We prove an analogous result on the level of derived categories, where the equivalence has to be replaced by an epivalence.
