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arXiv · 2510.24258

Torsion order and irrationality of complete intersections

Jan Lange·Guoyun Zhang
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Abstract

We provide new logarithmic lower bounds for the torsion order of a very general complete intersection in projective space as well as a very general hypersurface in products of projective spaces and Grassmannians, in particular we prove their retract irrationality.

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Jan Lange, Guoyun Zhang. 2025-10-28. Torsion order and irrationality of complete intersections. https://arxiv.org/abs/2510.24258

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