Algebraic geometry
Ramified cover of varieties with nef cotangent bundle
Comptes Rendus. Mathématique, Volume 360 (2022), pp. 929-932.

We construct examples to show that having nef cotangent bundle is not preserved under finite ramified covers. Our examples also show that a projective manifold with Stein universal cover may not have nef cotangent bundle, disproving a conjecture of Liu–Maxim–Wang [7].

Revised:
Accepted:
Published online:
DOI: 10.5802/crmath.365
Yiyu Wang 1

1 Department of Mathematics, University of Wisconsin - Madison, 480 Lincoln Drive, 213 Van Vleck Hall, Madison, WI 53706, USA
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Yiyu Wang. Ramified cover of varieties with nef cotangent bundle. Comptes Rendus. Mathématique, Volume 360 (2022), pp. 929-932. doi : 10.5802/crmath.365. https://comptes-rendus.academie-sciences.fr/mathematique/articles/10.5802/crmath.365/

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