Abstract
Let be a nonarchimedean local field and let be a torus over . With denoting the Néron–Raynaud model of , a result of Chai and Yu asserts that the model is canonically determined by for , where with denoting the natural projection of on , and . In this article we prove an analogous result for parahoric group schemes attached to facets in the Bruhat–Tits building of a connected reductive group over .
Citation
Radhika Ganapathy. "Congruences of parahoric group schemes." Algebra Number Theory 13 (6) 1475 - 1499, 2019. https://doi.org/10.2140/ant.2019.13.1475
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