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Mathematics > Number Theory

Title: Full Galois groups of polynomials with slowly growing coefficients

Abstract: Choose a polynomial $f$ uniformly at random from the set of all monic polynomials of degree $n$ with integer coefficients in the box $[-L,L]^n$. The main result of the paper asserts that if $L=L(n)$ grows to infinity, then the Galois group of $f$ is the full symmetric group, asymptotically almost surely, as $n\to \infty$.
When $L$ grows rapidly to infinity, say $L>n^7$, this theorem follows from a result of Gallagher. When $L$ is bounded, the analog of the theorem is open, while the state-of-the-art is that the Galois group is large in the sense that it contains the alternating group (if $L< 17$, it is conditional on the general Riemann hypothesis). Hence the most interesting case of the theorem is when $L$ grows slowly to infinity.
Our method works for more general independent coefficients.
Subjects: Number Theory (math.NT)
MSC classes: 11R32, 12F10, 11R09, 11T23, 11T55
Cite as: arXiv:2404.13559 [math.NT]
  (or arXiv:2404.13559v1 [math.NT] for this version)

Submission history

From: Lior Bary-Soroker [view email]
[v1] Sun, 21 Apr 2024 07:14:28 GMT (14kb)

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