2 citations · 2 across the 6 of their papers we have counts for
6 papers
Log purity, torsors on root stacks and log Nori fundamental group
Sara Mehidi
We generalize the logarithmic purity theorem of Fujiwara-Kato-Mochizuki to torsors which arise in the Kummer log flat topology under finite flat linearly reductive group schemes. W…
Campana separable rational connectedness of toric orbifold
Enhao Feng, Sara Mehidi
We prove that smooth non-klt toric orbifolds are separably Campana rationally connected, extending the result in the klt case. We also show that there always exists a positive char…
Log geometry and lifting rational points
Leo Herr, Sara Mehidi, Marta Pieropan +1
For a morphism of schemes, we give a tropical criterion for which points of (valued in a field, discrete valuation ring, number ring, or Dedekind domain) lift to…
Moduli of finite flat torsors over nodal curves
Sara Mehidi, Thibault Poiret
We show that log flat torsors over a family of nodal curves under a finite flat commutative group scheme are classified by maps from the Cartier dual of to the log…
Extending torsors under quasi-finite flat group schemes
Sara Mehidi
Let be a discrete valuation ring of field of fractions and of residue field of characteristic . In an earlier work, we studied the question of extending torsors…
Extending torsors over regular models of curves
Sara Mehidi
Let be a discrete valuation ring with field of fractions and residue field of characteristic . Given a finite commutative group scheme over and a smooth pr…