t型结构是正常的扭转理论
t-structures are normal torsion theories
摘要:
我们刻画了稳定$\infty$ -范畴中的$t$ -结构为合适的拟范畴因子分解系统.更准确地说,我们表明,$t$结构$\mathfrak{t}$上的一个稳定的$\infty$范畴$\mathbf{C}$是等价的正常扭转理论$\mathbb{F}$上的$\mathbf{C}$,即一个因式分解系统$\mathbb{F}=(\mathcal{E},\mathcal{M})$,其中两个类满足3-为2取消属性,并与拉回/推出一定的兼容性。
英文摘要:
We characterize $t$-structures in stable $\infty$-categories as suitable quasicategorical factorization systems. More precisely we show that a $t$-structure $\mathfrak{t}$ on a stable $\infty$-category $\mathbf{C}$ is equivalent to a normal torsion theory $\mathbb{F}$ on $\mathbf{C}$, i.e. to a factorization system $\mathbb{F}=(\mathcal{E},\mathcal{M})$ where both classes satisfy the 3-for-2 cancellation property, and a certain compatibility with pullbacks/pushouts.
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