arXivDaily arXiv每日学术速递 周一至周五更新
arXiv周末暂无论文更新,休息一下吧,周末愉快~~
arXiv 0710.2328math.RT
收藏

关于有限维猜想的一个探讨

An approach to the finitistic dimension conjecture

François Huard, Octavio Mendoza, Marcelo Lanzilotta

摘要:

设$R$是代数闭域$k$上的有限维$k$ -代数,$\mathrm{mod} R$是所有可生成左$R$ -模的范畴.对于$\mathrm{mod} R,$的一个给定的全子范畴$\mathcal{X}$,我们用$\pfd \mathcal{X}$表示$\mathcal{X}.$的投射有限维数,即$\pfd \mathcal{X}:=\mathrm{sup} \{\pd X : X\in\mathcal{X} \text{and} \pd X<\infty\}.$。巴斯在60年代认为投影有限维$\pfd (R):=\pfd (\mathrm{mod} R)$必须是有限的。从那时起,许多工作已经做了对这个猜想的证明。最近,K。Igusa和J. Todorov定义了一个函数$Ψ:\mathrm{mod} R\to \Bbb{N},$,它被证明是有用的,证明了$\pfd (R)$对某些代数类是有限的。为了对有限维猜想有一个不同的处理方法,我们提出考虑$\mathrm{mod} R$的一类全子范畴而不是一类代数,即取$\mathrm{mod} R.$中所有分层系统$(θ,\leq)$的$θ$ -滤$R$ -模的范畴类$\F(θ)$

英文摘要:

Let $R$ be a finite dimensional $k$-algebra over an algebraically closed field $k$ and $\mathrm{mod} R$ be the category of all finitely generated left $R$-modules. For a given full subcategory $\mathcal{X}$ of $\mathrm{mod} R,$ we denote by $\pfd \mathcal{X}$ the projective finitistic dimension of $\mathcal{X}.$ That is, $\pfd \mathcal{X}:=\mathrm{sup} \{\pd X : X\in\mathcal{X} \text{and} \pd X<\infty\}.$ \ It was conjectured by H. Bass in the 60's that the projective finitistic dimension $\pfd (R):=\pfd (\mathrm{mod} R)$ has to be finite. Since then, much work has been done toward the proof of this conjecture. Recently, K. Igusa and J. Todorov defined a function $Ψ:\mathrm{mod} R\to \Bbb{N},$ which turned out to be useful to prove that $\pfd (R)$ is finite for some classes of algebras. In order to have a different approach to the finitistic dimension conjecture, we propose to consider a class of full subcategories of $\mathrm{mod} R$ instead of a class of algebras, namely to take the class of categories $\F(θ)$ of $θ$-filtered $R$-modules for all stratifying systems $(θ,\leq)$ in $\mathrm{mod} R.$

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

↑