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arXiv 2609.01298math.AGmath.AC

代数空间的傅里叶-穆凯轨迹的开性

Fourier--Mukai loci are open and base change

Elías Guisado Villalgordo, Pat Lank

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中文总结 AI 辅助

该研究建立代数空间上相对完美复形理论,证明积分变换的纤维完全忠实或等价的轨迹具有开性,属于代数几何领域的理论成果。

中文摘要 AI 辅助

我们建立代数空间上的相对完美复形理论,主要结果确定了积分变换的纤维完全忠实(或等价)的轨迹具有开性。

英文摘要

We develop a theory of relative (quasi-)perfect complexes for algebraic spaces. Our main result proves that for a pseudocoherent kernel relatively perfect over both factors, the loci where its fiberwise Fourier--Mukai transform is fully faithful or an equivalence are open. The kernel need not be perfect, and these loci commute with Noetherian base change. Moreover, we provide an explicit autoequivalence for elliptic fibrations, and establish that smoothness and Gorensteinness are derived invariants.

发表机构

  • BCAM – Basque Center for Applied Mathematics(巴斯克应用数学中心)
  • Dipartimento di Matematica “F. Enriques”, Università degli Studi di Milano(米兰大学F·恩里克斯数学系)

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