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Showing 2017 · math.AGShow all
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math.AG2017
Characteristic cycle of a rank one sheaf and ramification theory
Yuri Yatagawa
We compute the characteristic cycle of a rank one sheaf on a smooth surface over a perfect field of positive characteristic. We construct a canonical lifting on the cotangent bundl…
math.AG2017★ 1 cited
Equivariant extensions of Ga-torsors over punctured surfaces
Adrien Dubouloz, Isac Hedén, Takashi Kishimoto
Motivated by the study of the structure of algebraic actions the additive group on affine threefolds X, we consider a special class of such varieties whose algebraic quotient morph…