arXiv subjects

Haoyu Hu

Publications and source records attributed to Haoyu Hu.

92 records · Page 6Linked to original sources

arXiv2014

Refined characteristic class and conductor formula

In this article, we prove a conductor formula in a geometric situation that generalizes the Grothendieck-Ogg-Shafarevich formula. Our approach uses the ramification theory of Abbes and Saito, and relies on Tsushima's refined characteristic class.

math.AG↗

arXiv2013

Ramification and nearby cycles for l-adic sheaves on relative curves

Deligne and Kato proved a formula computing the dimension of the nearby cycles complex of an l-adic sheaf on a relative curve over an excellent strictly henselian trait. In this article, we reprove this formula using Abbes-Saito's ramification theory.

math.AG↗