论文标题

DG模块结构和最小的免费分辨率模型一个精确的零分量器

DG module structures and minimal free resolutions modulo an exact zero-divisor

论文作者

Şega, Liana M., Sireeshan, Deepak

论文摘要

令$ q $为本地戒指,具有最大理想$ \ mathfrak {n} $,让$ f,g \ in \ mathfrak {n} \ smallSetMinus \ mathfrak {n}^2 $带有$ fg = 0 $。当$ m $是有限的$ q $ -module,$ fm = 0 $时,我们表明,$ m $ $ $ q $的最低免费分辨率在$ q $上面的差异分级模块结构上的差异分级模块结构,而分级为algebra $ q \ langle y,t \ nim t \ mid part \ mid \ partial(y)当$(f,g)$是一对确切的零分配器时,我们使用此结构来描述$ m $ $ $ $ Q/(f)$的最低免费分辨率。

Let $Q$ be a local ring with maximal ideal $\mathfrak{n}$ and let $f,g\in \mathfrak{n}\smallsetminus\mathfrak{n}^2$ with $fg=0$. When $M$ is a finite $Q$-module with $fM=0$, we show that a minimal free resolution of $M$ over $Q$ has a differential graded module structure over the differential graded algebra $Q\langle y,t\mid \partial(y)=f, \partial(t)=gy\rangle$. When $(f,g)$ is a pair of exact zero divisors, we use this structure to describe a minimal free resolution of $M$ over $Q/(f)$.

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