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arXiv 0704.3633math.ACmath.ATmath.RT
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投射模的三角剖分

Triangulations of projective modules

Mark Hovey, Keir H. Lockridge

摘要:

我们证明了分次交换环上的投射模范畴允许关于模悬置的三角剖分当且仅当该环是分次域上的一个生成元上的分次域和外代数的有限积(具有适当次数的单位).我们还对投射模范畴允许关于单位悬置的三角剖分的未分次交换环进行了分类。给出了代数拓扑中生成假设的两个类似物的应用,并将我们的结果转化为对称环谱或S-代数上模的设置。

英文摘要:

We show that the category of projective modules over a graded commutative ring admits a triangulation with respect to module suspension if and only if the ring is a finite product of graded fields and exterior algebras on one generator over a graded field (with a unit in the appropriate degree). We also classify the ungraded commutative rings for which the category of projective modules admits a triangulation with respect to the identity suspension. Applications to two analogues of the generating hypothesis in algebraic topology are given, and we translate our results into the setting of modules over a symmetric ring spectrum or S-algebra.

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