activity
20152026
most citedStrengthening the Baillie-PSW primality test

11 citations · 34 across the 24 of their papers we have counts for

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16 papers · 1 filter

math.NT2026

Explicit bounds for the prime number theorem

Andrew Fiori, Mikko Jaskari

We study the problem of finding tight explicit bounds on sums over zeros of -functions near the -line with a variety of zero-free regions and zero-density estimates. As an ap…

math.NT2026

Zero density theorems for short intervals

Andrew Fiori

We provide explicit bounds on the number of zeros for in short intervals near the edge of the critical strip. Ultimately we show that even in short intervals a positive proport…

math.NT2026

Bounds for Mertens Sums

Samuel Broadbent, Andrew Fiori, Habiba Kadiri +2

In this article we provide new bounds for the Mertens sums and products including and which provide superior exponential a…

math.NT2025

Counting Frobenius Pseudoprimes

Andrew Fiori, Hiva Gheisari

We generalize the work of Erdos-Pomerance and Fiori-Shallue on counting Frobenius pseudoprimes from the cases of degree one and two respectively to arbitrary degree. More specifica…

math.NT2025

A Note on the Phragmen-Lindelof Theorem

Andrew Fiori

We provide a generalization of the Phragmén-Lindelöf principal of Rademacher with the aim of correcting, or at least provide a pathway to correcting, several errors appearing in th…

math.NT2024

The Least Prime in Arithmetic an Progression

Andrew Fiori

In his 1979 paper Samuel Wagstaff studied the problem of bounding the first prime in an arithmetic progression. In this paper we update a number of his computations using advances…

math.NT2022

Sharper bounds for the error term in the Prime Number Theorem

Andrew Fiori, Habiba Kadiri, Joshua Swidinsky

We provide very effective methods to convert both asymptotic and explicit numeric bounds on the prime counting function to bounds of the same type on both and .…

math.NT2022

Families of -congruence subgroups of the modular group

Angelica Babei, Andrew Fiori, Cameron Franc

We introduce and study families of finite index subgroups of the modular group that generalize the congruence subgroups. Such groups, termed -congruence subgroups, are obtained…

math.NT2022

Sharper bounds for the Chebyshev function

Andrew Fiori, Habiba Kadiri, Joshua Swidinsky

We improve the unconditional explicit bounds for the error term in the prime counting function . In particular, we prove that, for all , we have \[ \left| ψ(x)-x \right|…

math.NT2020★ 1 cited

The unbounded denominator conjecture for the noncongruence subgroups of index

Andrew Fiori, Cameron Franc

We study modular forms for the minimal index noncongruence subgroups of the modular group. Our main theorem is a proof of the unbounded denominator conjecture for these groups, and…

math.NT2020★ 11 cited

Strengthening the Baillie-PSW primality test

Robert Baillie, Andrew Fiori, Samuel S. Wagstaff

The Baillie-PSW primality test combines Fermat and Lucas probable prime tests. It reports that a number is either composite or probably prime. No odd composite integer has been rep…

math.NT2018★ 3 cited

Lower Bounds for the Least Prime in Chebotarev

Andrew Fiori

In this paper we show there exists an infinite family of number fields , Galois over , for which the smallest prime of which splits completely in $L…

math.NT2017★ 2 cited

Average liar count for degree-2 Frobenius pseudoprimes

Andrew Fiori, Andrew Shallue

In this paper we obtain lower and upper bounds on the average number of liars for the Quadratic Frobenius Pseudoprime Test of Grantham, generalizing arguments of Erdős and Pomeranc…

math.NT2016

Toroidal Compactifications and Dimension Formulas for Spaces of Modular Forms for Orthogonal Shimura Varieties

Andrew Fiori

In this paper we describe the general theory of constructing toroidal compactifications of locally symmetric spaces and using these to compute dimension formulas for spaces of modu…

math.NT2016★ 1 cited

Sub-Shimura Varieties for type O(2,n)

Andrew Fiori

We give a classification, up to consideration of component groups, of sub-Shimura varieties of those Shimura Varieties attached to orthogonal groups of signature (2,n) over Q.

math.NT2015

On The -Invariants of CM-Elliptic Curves Defined Over

Andrew Fiori

We characterize the possible reductions of -invariants of elliptic curves which admit complex multiplication by an order where the curve itself is defined over $\m…