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We estimate, in a number field, the number of elements and the maximal number of linearly independent elements, with prescribed bounds on their valuations. As a by-product, we obtain new bounds for the successive minima of ideal lattices.…

Number Theory · Mathematics 2024-11-18 Mikołaj Frączyk , Gergely Harcos , Péter Maga

We study the number of degree $n$ number fields with discriminant bounded by $X$. In this article, we improve an upper bound due to Schmidt on the number of such fields that was previously the best known upper bound for $6 \leq n \leq 94$.

We arrange the orders in an algebraic number field in a tree. This tree can be used to enumerate all orders of bounded index in the maximal order as well as the orders over some given order.

Number Theory · Mathematics 2024-11-14 Markus Kirschmer , Jürgen Klüners

We give an upper bound on the number of extensions of a fixed number field of prescribed degree and discriminant less than X; these bounds improve on work of Schmidt. We also prove various related results, such as lower bounds for the…

Number Theory · Mathematics 2007-05-23 Jordan S. Ellenberg , Akshay Venkatesh

In this paper we give a survey of recent methods for the asymptotic and exact enumeration of number fields with given Galois group of the Galois closure. In particular, the case of fields of degree up to 4 is now almost completely solved,…

Number Theory · Mathematics 2015-06-26 Henri Cohen

Let $N_n(X)$ denote the number of degree $n$ number fields with discriminant bounded by $X$. In this note, we improve the best known upper bounds on $N_n(X)$, finding that $N_n(X) = O(X^{ c (\log n)^2})$ for an explicit constant $c$.

Number Theory · Mathematics 2020-06-24 Robert J. Lemke Oliver , Frank Thorne

We consider cubic number fields ordered by their discriminants, and show that there exist arbitrarily long sequences that contain only fields with class numbers greater than a given bound.

Number Theory · Mathematics 2026-01-08 Vitezslav Kala , Om Prakash

We give lower bounds on the number of effective divisors of degree $\leq g-1$ with respect to the number of places of certain degrees of an algebraic function field of genus $g$ defined over a finite field. We deduce lower bounds and…

Algebraic Geometry · Mathematics 2011-04-14 Stéphane Ballet , Robert Rolland

We prove an improvement on Schmidt's upper bound on the number of number fields of degree $n$ and absolute discriminant less than X for $6 \leq n \leq 94$. We carry this out by improving and applying a uniform bound on the number of monic…

Number Theory · Mathematics 2022-10-04 Manjul Bhargava , Arul Shankar , Xiaoheng Wang

We describe an algorithm for listing all elements of bounded height in a given number field.

Number Theory · Mathematics 2021-08-12 John R. Doyle , David Krumm

We obtain new upper and lower bounds on the number of unit perimeter triangles spanned by points in the plane. We also establish improved bounds in the special case where the point set is a section of the integer grid.

Combinatorics · Mathematics 2025-10-06 Ritesh Goenka , Kenneth Moore , Ethan Patrick White

We construct compact descriptions of function fields and number fields.

Number Theory · Mathematics 2020-11-04 Jean-Marc Couveignes

Linear differential equations and recurrences reveal many properties about their solutions. Therefore, these equations are well-suited for representing solutions and computing with special functions. We identify a large class of existing…

Symbolic Computation · Computer Science 2026-01-14 Louis Gaillard

We fix a counting function of multiplicities of algebraic points in a projective hypersurface over a number field, and take the sum over all algebraic points of bounded height and fixed degree. An upper bound for the sum with respect to…

Algebraic Geometry · Mathematics 2021-01-22 Hao Wen , Chunhui Liu

We prove an asymptotic formula for the number of multi-quadratic number fields of bounded discriminant with a power-saving error term. Furthermore, we explicitly calculate the leading coefficient and extend our result to totally real…

Number Theory · Mathematics 2019-02-18 Robin Fritsch

We give an explicit upper bound for the number of equivalence classes of binary forms with rational integral coefficients of given degree and given discriminant, and with given splitting field. Further, we give an explicit upper bound for…

Number Theory · Mathematics 2015-06-26 Attila Berczes , Jan-Hendrik Evertse , Kalman Gyory

We construct certain $\theta$-series associated to number fields and prove that for number fields of degree less than equal to 4, these $\theta$-series are number field invariants. We also investigate whether or not the collection of…

Number Theory · Mathematics 2019-10-02 Adrian Barquero-Sanchez , Guillermo Mantilla-Soler , Nathan C. Ryan

In this short note we introduce the Belyi degree of a number field K, which is the smallest degree of a dessin d'enfant having K as field of moduli. After the description of some general properties (for example, the fact that there exist…

Number Theory · Mathematics 2007-05-23 Leonardo Zapponi

We establish bounds on a finite separable extension of function fields in terms of the relative class number, thus reducing the problem of classifying extensions with a fixed relative class number to a finite computation. We also solve the…

In this paper we study the distribution of orders of bounded discriminants in number fields. We give an asymptotic formula for the number of orders contained in the ring of integers of a quintic number field.

Number Theory · Mathematics 2015-04-17 Nathan Kaplan , Jake Marcinek , Ramin Takloo-Bighash
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