Slopes for higher rank Artin-Schreier-Witt Towers

Rufei Ren, Daqing Wan, Liang Xiao +1

We fix a monic polynomial $\bar{f}(x)\in {\mathbb{F}}_q[x]$ over a finite field of characteristic $p$, and consider the ${\mathbb{Z}}_{p^{\ell }}$-Artin-Schreier-Witt tower defined by $…