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arXiv · 2405.06935

Non stable rationality of projective approximations for classifying spaces

Nobuaki Yagita
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Abstract

We give many examples of non stable rationalities for projective approximations of classifying spaces. Here we use the new invariant by Benoit-Ottem, and also use the classical unramified cohomology..

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Nobuaki Yagita. 2024-05-11. Non stable rationality of projective approximations for classifying spaces. https://arxiv.org/abs/2405.06935

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