arXiv subjects
Publications and source records attributed to Aditi Savalia.
Given a number field $L\neq \mathbb{Q}$, we obtain new and explicit zero-free regions for Dedekind zeta-functions of $L$, which refine the previous works of Ahn--Kwon, Kadiri, and Lee. In particular, for low-lying zeros, we extend Kadiri's result to all number fields while improving the main constant.
In the spirit of the work of Hardy-Littlewood and Lavrik, we study the Dirichlet series associated to the generalized divisor function $σ_α(n):=\sum_{d|n}d^α$. We obtain an exact identity relating the Dirichlet series $ζ(s)ζ(s-α)$ and a segment of the Euler product attached to it. Specifically, our main theorems are valid in the critical strip.
Let $\mathbb{F}_q[t]$ be the polynomial ring over the finite field $\mathbb{F}_{q}$. For arithmetic functions $ψ_{1}, ψ_{2}: \mathbb{F}_{q}[t]\rightarrow\mathbb{C}$, we establish that if a Bombieri-Vinogradov type equidistribution result holds for $ψ_{1}$ and $ψ_{2}$, then it also holds for their Dirichlet convolution $ψ_{1} \ast ψ_{2}$. As an application of this, we resolve a version of the Titchmarsh divisor problem in $\mathbb{F}_{q}[t]$. More precisely, we obtain an asymptotic for the average behaviour of the divisor function over shifted products of two primes in $\mathbb{F}_q[t]$.