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Let $(A,\Theta)$ be a complex principally polarized abelian variety of dimension $g\geq 4$. Based on vanishing theorems, differentiation techniques and intersection theory, we show that whenever the theta divisor $\Theta$ is irreducible,…

Algebraic Geometry · Mathematics 2021-07-14 Victor Lozovanu

Building on work of J. Robinson and A. Shlapentokh, we develop a general framework to obtain definability and decidability results of large classes of infinite algebraic extensions of $\mathbb{F}_p(t)$. As an application, we show that for…

Logic · Mathematics 2024-09-04 Carlos Martinez-Ranero , Dubraska Salcedo , Javier Utreras

We use recurrences of integrals to give new and elementary proofs of the irrationality of pi, tan(r) for all nonzero rational r, and cos(r) for all nonzero rational r^2. Immediate consequences to other values of the elementary…

Number Theory · Mathematics 2009-11-20 Li Zhou , Lubomir Markov

We prove and conjecture several relations between multizeta values for $\mathbb{F}_q[t]$, focusing on zeta-like values, namely those whose ratio with the zeta value of the same weight is rational (or equivalently algebraic). In particular,…

Number Theory · Mathematics 2013-12-18 José Alejandro Lara Rodríguez , Dinesh S. Thakur

We consider the resolvent of a system of first order differential operators with a regular singularity, admitting a family of self-adjoint extensions. We find that the asymptotic expansion for the resolvent in the general case presents…

Mathematical Physics · Physics 2008-11-26 H. Falomir , M. A. Muschietti , P. A. G. Pisani , R. Seeley

I show here that there are three different kinds of iterations for the reduced Collatz algorithm; depending on whether the root of the number is odd or even. There is only one kind of iteration if the root is odd and two kinds if the root…

General Mathematics · Mathematics 2022-10-28 Leonel Sternberg

Euler gave recipes for converting alternating series of two types, I and II, into equivalent continued fractions, i.e., ones whose convergents equal the partial sums. A condition we prove for irrationality of a continued fraction then…

Number Theory · Mathematics 2020-10-01 Jonathan Sondow

We establish a short exact sequence about depth-graded motivic double zeta values of even weight relative to $\mu_2$. We find a basis for the depth-graded motivic double zeta values relative to $\mu_2$ of even weight and a basis for the…

Number Theory · Mathematics 2018-11-21 Zhongyu Jin , Jiangtao Li

We show how to obtain infinitely many continued fractions for certain Z-linear combinations of zeta and L values. The methods are completely elementary.

Number Theory · Mathematics 2022-12-05 Henri Cohen

G\"odel's first and second incompleteness theorems are corner stones of modern mathematics. In this article we present a new proof of these theorems for ZFC and theories containing ZFC, using Chaitin's incompleteness theorem and a very…

Logic · Mathematics 2023-02-20 David O. Zisselman

We evaluate in closed form three special classes of alternating zeta series with one and two additional parameters. Two classes are expressed as linear combinations of polylogarithms while for the third class we prove an expression…

Combinatorics · Mathematics 2023-04-06 Kunle Adegoke , Robert Frontczak , Taras Goy

We prove that a real number a greater than or equal to 2 is the irrationality exponent of some computable real number if and only if a is the upper limit of a computable sequence of rational numbers. Thus, there are computable real numbers…

Number Theory · Mathematics 2014-10-07 Verónica Becher , Yann Bugeaud , Theodore A. Slaman

In a recent work, Gun, Murty and Rath defined the Chowla-Milnor space and proved a non-trivial lower bound for these spaces. They also obtained a conditional improvement of this lower bound and noted that an unconditional improvement of…

Number Theory · Mathematics 2013-08-30 Tapas Chatterjee

The degree of irrationality of a projective variety $X$ is defined to be the smallest degree rational dominant map to a projective space of the same dimension. For abelian surfaces, Yoshihara computed this invariant in specific cases, while…

Algebraic Geometry · Mathematics 2021-10-27 Nathan Chen

Formal multiple zeta values allow to study multiple zeta values by algebraic methods in a way that the open question about their transcendence is circumvented. In this note we show that Hoffman's basis conjecture for formal multiple zeta…

Number Theory · Mathematics 2024-06-21 Annika Burmester , Niclas Confurius , Ulf Kühn

We prove the Voronin universality theorem for the multiple Hurwitz zeta-function with rational or transcendental parameters in $\mathbb{C}^n$ answering a question of Matsumoto. In particular this implies that the Euler-Zagier multiple…

Number Theory · Mathematics 2023-08-21 Johan Andersson

New formulas for approximation of zeta-constants were derived on the basis of a number-theoretic approach constructed for the irrationality proof of certain classical constants. Using these formulas it's possible to approximate certain…

Number Theory · Mathematics 2018-05-08 Ekatherina A. Karatsuba

We show that every irrational number is a sum of two real numbers with diverging partial quotients. The proof is constructive. The key towards these results is an algorithm which was recently developed by Nikita Shulga, and our study of…

Number Theory · Mathematics 2025-07-08 Dmitry Gayfulin , Erez Nesharim

Assume that the Riemann hypothesis holds for Dedekind zeta functions. Under this assumption, we prove that a degree $d$ polynomial with random multiplicative $\pm1$ coefficients is irreducible in $\mathbb{Z}[x]$ with probability…

Number Theory · Mathematics 2025-11-07 Péter P. Varjú , Max Wenqiang Xu

The Ap\'ery polynomials and in particular their asymptotic behavior play an essential role in the understanding of the irrationality of \zeta(3). In this paper, we present a method to study the asymptotic behavior of the sequence of the…

Classical Analysis and ODEs · Mathematics 2013-07-02 Thorsten Neuschel