Yunqing Tang E-mail:  yunqingt at math dot princeton dot edu I am an instructor at Princeton University since July 2017. I recently graduated from Harvard University under supervision of Mark Kisin and I was a member at IAS during the academic year 2016-2017. Here is my CV.

Research articles

• Newton polygons arising for special families of cyclic covers of the projective line, with Wanlin Li, Elena Mantovan, and Rachel Pries, submitted.
  We produce multiple new examples of Newton polygons and Ekedahl–Oort types of Jacobians of smooth curves in characteristic p from twenty special families of curves in Moonen's work.


• Newton polygons of cyclic covers of the projective line branched at three points, with Wanlin Li, Elena Mantovan, and Rachel Pries, submitted.
  We produce multiple new examples of Newton polygons that occur for Jacobians of smooth curves in characteristic p from such cyclic covers.


• Exceptional splitting of reductions of abelian surfaces, with Ananth Shankar, submitted.
  We prove that an abelian surface with real multiplication over a number field has infinitely many places of geometrically nonsimple reduction.


• Effective bounds for Brauer groups of Kummer surfaces over number fields, with Victoria Cantoral-Farfan, Sho Tanimoto, and Erik Visse, accepted by Journal of the London Mathematical Society.
  We study effective bounds for Brauer groups of Kummer surfaces associated to Jacobians of genus 2 curves defined over number fields.


• Cycles in the de Rham cohomology of abelian varieties over number fields, Compositio Mathematica 154 (2018), no.4, 850--882.
  We prove the conjecture of Ogus that absolute Tate cycles are the same as Hodge cycles for some classes of abelian varieties.


• Algebraic solutions of differential equations over the projective line minus three points, accepted by the International Journal of Number Theory.
  We prove a variant of the Grothendieck--Katz p-curvature conjecture under certain convergence condition for all finite places.