Cohomological descent for obstructions to local-global principle
Algebraic Geometry
2026-03-25 v1 Number Theory
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.
Keywords
Cite
@article{arxiv.2603.23288,
title = {Cohomological descent for obstructions to local-global principle},
author = {Chang Lv},
journal= {arXiv preprint arXiv:2603.23288},
year = {2026}
}
Comments
28 pages, git commit b2d4a69a