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arXiv · 1603.09284

Ramification of inseparable coverings of schemes and application to diagonalizable group actions

Gabriel Zalamansky
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Abstract

We define the notion of inseparable coverings of schemes and we propose a ramification formalism for them, along the lines of the classical one. Using this formalism we prove a formula analogous to the classical Riemann-Hurwitz formula for generic torsors under infinitesimal diagonalizable group schemes.

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Gabriel Zalamansky. 2016-03-30. Ramification of inseparable coverings of schemes and application to diagonalizable group actions. https://arxiv.org/abs/1603.09284

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