Degree three unramified cohomology groups and Noether's problem for groups of order 243
DOI10.1016/j.jalgebra.2019.08.008zbMath1434.13010arXiv1710.01958OpenAlexW2968588986WikidataQ127358320 ScholiaQ127358320MaRDI QIDQ2333380
Aiichi Yamasaki, Akinari Hoshi, Ming-chang Kang
Publication date: 12 November 2019
Published in: Journal of Algebra (Search for Journal in Brave)
Full work available at URL: https://arxiv.org/abs/1710.01958
Noether's problemunramified Brauer groupsrationality problemsLyndon-Hochschild-Serre spectral sequencepermutation negligible classesstable cohomology groupsunramified cohomology groups
Cohomology of groups (20J06) Integral representations of finite groups (20C10) Actions of groups on commutative rings; invariant theory (13A50) Brauer groups of schemes (14F22) Rationality questions in algebraic geometry (14E08)
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