2 papers
math.NT2022
The slope-invariant of local ghost series under direct sum
Rufei Ren
The ghost conjecture is first provided by Bergdall and Pollack in [BP-1,BP-2] to study the Up-slopes of spaces of modular forms, which, so far, has already brought plenty of import…
math.NT2017
Generic Newton polygon for exponential sums in two variables with triangular base
Rufei Ren
Let be a prime number. Every two-variable polynomial over a finite field of characteristic defines an Artin--Schreier--Witt tower of surfaces whose Galois gro…