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In the present paper, we provide a new analogy between number fields and 1-dimensional function fields over finite fields from the viewpoint that the maximal cyclotomic extension of a number field is analogous to the constant field…

Number Theory · Mathematics 2025-07-29 Manabu Ozaki

We study whether several consecutive prime gaps can all be relatively large at the same time, or is it possible that all are squares or perfect powers, or perhaps none of them are squares? A few related results and problems are also…

Number Theory · Mathematics 2026-02-10 Katalin Gyarmati

We prove that a pointwise fractional Hardy inequality implies a fractional Hardy inequality, defined via a Gagliardo-type seminorm. The proof consists of two main parts. The first one is to characterize the pointwise fractional Hardy…

Classical Analysis and ODEs · Mathematics 2024-04-09 Lizaveta Ihnatsyeva , Kaushik Mohanta , Antti V. Vähäkangas

Let $\mathbb{T}$ be the differential field of logarithmic-exponential transseries. We consider the expansion of $\mathbb{T}$ by the binary map that sends a real number $r$ and a positive transseries $f$ to the transseries $f^r$. Building on…

Logic · Mathematics 2024-12-24 Elliot Kaplan

In this paper we give several methods to construct curves over finite fields with many points and illustrate this with examples of the results.

alg-geom · Mathematics 2008-02-03 Gerard van der Geer , Marcel van der Vlugt

We show the existence of formal equivalences between reversible and Hamiltonian vector fields. The main tool we employ is the normal form theory.

Dynamical Systems · Mathematics 2011-03-03 Ricardo Miranda Martins

We define and prove characterizations of Hardy-Orlicz spaces of conformal densities.

Classical Analysis and ODEs · Mathematics 2015-02-10 Sita Benedict

We investigate the large values of class numbers of cubic fields, showing that one can find arbitrary long sequences of "close" abelian cubic number fields with class numbers as large as possible. We also give a first step toward an…

Number Theory · Mathematics 2024-08-05 Jérémy Dousselin

Linear superposition of gravitational fields is shown to be possible for a large class of spacetimes, in some specific coordinates. Explicit examples are presented.

General Relativity and Quantum Cosmology · Physics 2024-03-07 Enrique Álvarez , Jesús Anero

In this paper, we study additively indecomposable quadratic forms over real biquadratic and simplest cubic fields. In particular, we show that over these fields, we can always find such a classical form in 2 variables, which differs from…

Number Theory · Mathematics 2026-02-10 Simona Fryšová , Magdaléna Tinková

It is shown that there exists a duality among fields. If a field is dual to another field, the solution of the field can be obtained from the dual field by the duality transformation. We give a general result on the dual fields. Different…

General Physics · Physics 2019-05-21 Wen-Du Li , Wu-Sheng Dai

This document seeks to prove there are infinitely many primes whose difference is 2, referred to as twin prime pairs. This proof's methodology involves constructing a function that approximates the number of positive integers, less than a…

General Mathematics · Mathematics 2017-11-01 Kevin B. Espinet

We classify fields having finitely many finite non-commutative (not necessarily central) division algebras over them. In the process, we introduce the notion of anti-closure of a field and also make comments on fields having a linear…

Rings and Algebras · Mathematics 2023-09-18 Snehinh Sen

In this work, using maximal elements in generalized Weierstrass semigroups and its relationship with pure gaps, we extend the results in \cite{CMT2024} and provide a way to completely determine the set of pure gaps at several rational…

Information Theory · Computer Science 2023-11-20 Alonso S. Castellanos , Erik A. R. Mendoza , Guilherme Tizziotti

We give a method for constructing Kummer covers with many points over finite fields.

Algebraic Geometry · Mathematics 2007-05-23 Gerard van der Geer , Marcel van der Vlugt

In a countably normed space which is a linear space equipped with a countable number of pair-wise compatible norms, we prove the existence of a common nearest point (in all norms) from a point outside a nonempty subset if this subset is…

Functional Analysis · Mathematics 2022-12-14 Moustafa M. Zakaria , Nashat Faried , Hany A. El-Sharkawy

In this paper we look at the automorphisms of the multiplicative group of finite nearfields. We find partial results for the actual automorphism groups. We find counting techniques for the size of all finite nearfields. We then show that…

Rings and Algebras · Mathematics 2016-02-02 Tim Boykett , Karin-Therese Howell

We completely describe the boundedness of the Volterra type operator $J_ g$ between Hardy spaces in the unit ball of $\Cn$. The proof of the one dimensional case used tools, such as the strong factorization for Hardy spaces, that are not…

Complex Variables · Mathematics 2013-12-04 Jordi Pau

A new mechanism for the parity doublers in hadrons is suggested.

General Physics · Physics 2007-08-08 A. E. Inopin

We prove that the pointwise product of two holomorphic functions of the upper half-plane, one in the Hardy space $\mathcal H^1$, the other one in its dual, belongs to a Hardy type space. Conversely, every holomorphic function in this space…

Classical Analysis and ODEs · Mathematics 2015-04-10 Aline Bonami , Luong Dang Ky