activity
20062022
most citedMultiple harmonic sums and Wolstenholme's theorem

12 citations · 54 across the 13 of their papers we have counts for

collaborators

14 papers

math.NT2022

The ring of finite algebraic numbers and its application to the law of decomposition of primes

Julian Rosen, Yoshihiro Takeyama, Koji Tasaka +1

In this paper, we develop an explicit method to express finite algebraic numbers (in particular, certain idempotents among them) in terms of linear recurrent sequences, and give ap…

math.NT2020

The moduli space of -algebras

Andrew O'Desky, Julian Rosen

Let be a Galois algebra with Galois group and let be a normal element of . The moduli space of pairs is isomorphic to an open subset of the quot…

math.NT2018★ 6 cited

A finite analogue of the ring of algebraic numbers

Julian Rosen

We construct an analogue of the ring of algebraic numbers, living in a quotient of the product of all finite fields of prime order. We use this ring to deduce some results about li…

math.NT2018★ 3 cited

Sequential periods of the crystalline Frobenius

Julian Rosen

There is a notion of -adic period coming from the crystalline Frobenius automorphism of the de Rham cohomology of an algebraic variety. In this paper, we consider sequences of $…

math.NT2017★ 1 cited

A choice-free absolute Galois group and Artin motives

Julian Rosen

Proofs that an arbitrary field has a separable closure are necessarily non-constructive, and separable closures are unique only up to non-canonical isomorphism. This means that the…

math.NT2017★ 1 cited

A general family of congruences for Bernoulli numbers

Julian Rosen

We prove a general family of congruences for Bernoulli numbers whose index is a polynomial function of a prime, modulo a power of that prime. Our family generalizes many known resu…