有限或纯超越值域扩张的积分(对数)余切复物
The integral (log) cotangent complex of extensions of valued fields
AI总结:
本文构造了实值域扩张的积分和对数余切复物,通过MacLane-Vaquié链近似估值,得到相关不变量的显式公式,并推广Gabber和Ramero的结果至对数情形。
摘要:
设(L, v_L)/(K, v_K)为有限或纯超越实值域扩张。我们构造了相关的积分余切和对数余切复物,基于MacLane-Vaquié链近似v_L。这导致了诸如绝对(对数)微分、重量范数和Kähler范数等关联不变量的显式公式。作为我们方法的推论,我们获得了积分(对数)余切复物的高阶同调的强控制,将Gabber和Ramero的重要结果推广到对数情形。
英文摘要:
Let $(L, v_L) / (K, v_K)$ be a finite or purely transcendental extension of real valued fields. We construct the associated integral cotangent and log cotangent complexes in terms of a MacLane-Vaquié chain approximating $v_L$. This leads to explicit formulas for associated invariants such as the (absolute) (log) different, weight norm and Kähler norm. As a corollary of our methods we obtain strong control of the higher homology of the integral (log) cotangent complex, generalizing an important result of Gabber and Ramero to the logarithmic setting.
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