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arXiv · 2603.23288

Cohomological descent for obstructions to local-global principle

Chang Lv
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Abstract

We develop a formalism of cohomological descent encoding adelic points and obstructions to local-global principle on algebraic stacks. As an application, by constructing new obstructions using the formalism, we obtain some comparison results of obstructions on some classes of algebraic stacks.

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Chang Lv. 2026-03-24. Cohomological descent for obstructions to local-global principle. https://arxiv.org/abs/2603.23288

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