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Related papers: A note on normality of $\sqrt{2}$ in base 2

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Mordechay Levin has constructed a number $\alpha$ which is normal in base 2, and such that the sequence $\left\{2^n \alpha\right\}_{n=0,1,2,\ldots}$ has very small discrepancy $D_N$. Indeed we have $N\cdot D_N = \mathcal{O} \left(\left(\log…

Number Theory · Mathematics 2022-08-26 Roswitha Hofer , Gerhard Larcher

We study a novel class of affine invariant and consistent tests for normality in any dimension. The tests are based on a characterization of the standard $d$-variate normal distribution as the unique solution of an initial value problem of…

Methodology · Statistics 2019-09-30 Philip Dörr , Bruno Ebner , Norbert Henze

In this paper, we treat the problem of testing for normality as a binary classification problem and construct a feedforward neural network that can successfully detect normal distributions by inspecting small samples from them. The…

Machine Learning · Statistics 2020-10-08 Miloš Simić

Let $\alpha,\beta$ be real numbers and $b\geq2$ be an integer. Allouche and Shallit showed that the sequence $\{\lfloor\alpha n+\beta\rfloor\}_{n\geq0}$ is $b$-regular if and only if $\alpha$ is rational. In this paper, using a…

Formal Languages and Automata Theory · Computer Science 2015-08-27 Jiemeng Zhang , Yingjun Guo , Zhixiong Wen

We prove global second-order regularity for a class of quasilinear elliptic equations, both with homogeneous Dirichlet and Neumann boundary conditions. A condition on the integrability of the second fundamental form on the boundary of the…

Analysis of PDEs · Mathematics 2025-07-23 Giuseppe Spadaro , Domenico Vuono

We take a fresh look at the relationship between $K$-regularity and regularity of schemes, proving two results in this direction. First, we show that $K_2$-regular affine algebras over fields of characteristic zero are normal. Second, we…

Algebraic Geometry · Mathematics 2025-02-12 Christian Haesemeyer , Charles A. Weibel

There are two basic ways of weakening the definition of the well-known metric regularity property by fixing one of the points involved in the definition. The first resulting property is called metric subregularity and has attracted a lot of…

Optimization and Control · Mathematics 2020-01-22 R. Cibulka , M. Fabian , A. Y. Kruger

This short note considers the problem of testing the null hypothesis that the mean values of two multivariate normal variables are proportional. We show that the usual likelihood ratio $\chi^2$-test is valid non-asymptotically. Our proof…

Statistics Theory · Mathematics 2021-03-10 Etaash Katiyar , Qingyuan Zhao

Liouville numbers were the first class of real numbers which were proven to be transcendental. It is easy to construct non-normal Liouville numbers. Kano and Bugeaud have proved, using analytic techniques, that there are normal Liouville…

Information Theory · Computer Science 2014-01-21 Satyadev Nandakumar , Santhosh Kumar Vangapelli

The purpose of this article is to give the solutions of the inverse problem for Pellian equations. For any rational number $0< a/b < 1$, the fundamental discriminants $D$ satisfying $(\lfloor \sqrt{D} \rfloor b + a)^2 - D b^2 = 4$ are given…

Number Theory · Mathematics 2013-07-10 Jeongho Park

In this study, we provide mathematical and practice-driven justification for using $[0,1]$ normalization of inconsistency indicators in pairwise comparisons. The need for normalization, as well as problems with the lack of normalization,…

Discrete Mathematics · Computer Science 2017-02-28 W. W. Koczkodaj , J. -P. Magnot , J. Mazurek , J. F. Peters , H. Rakhshani , M. Soltys , D. Strzałka , J. Szybowski , A. Tozzi

It is proved that any family of analytic functions with spherical derivative uniformly bounded away from zero ist normal.

Complex Variables · Mathematics 2011-02-16 Norbert Steinmetz

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

We obtain a new characterization for irrational numbers of constant type -- defined as irrationals with bounded partial quotients in their continued fraction expansion. The result is essential in the formulation of stability criteria for…

Mathematical Physics · Physics 2008-11-06 Manash Mukherjee , Gunther Karner

This note examines the infinite divisibility of density-based transformations of normal random variables. We characterize a class of density-based transformations of normal variables which produces non-infinitely divisible distributions. We…

Statistics Theory · Mathematics 2011-08-03 A. Murillo-Salas , F. J. Rubio

We study the behavior of irregular fibrations of a variety under derived equivalence of its bounded derived category. In particular we prove the derived invariance of the existence of an irregular fibration over a variety of general type,…

Algebraic Geometry · Mathematics 2025-02-25 Federico Caucci , Luigi Lombardi

We show that normality for continued fractions expansions and normality for base-$b$ expansions are maximally logically separate. In particular, the set of numbers that are normal with respect to the continued fraction expansion but not…

Number Theory · Mathematics 2021-11-24 Steve Jackson , Bill Mance , Joseph Vandehey

Normal numbers were introduced by Borel and later proven to be a weak notion of algorithmic randomness. We introduce here a natural relativization of normality based on generalized number representation systems. We explore the concepts of…

In this paper we show the following conjecture of Noga Alon. Fix a positive integer d>2 and real epsilon > 0; consider the probability that a random d-regular graph on n vertices has the second eigenvalue of its adjacency matrix greater…

Discrete Mathematics · Computer Science 2007-05-23 Joel Friedman

The purpose of this paper is to study the limiting distribution of special {\it additive functionals} on random planar maps, namely the number of occurrences of a given {\it pattern}. The main result is a central limit theorem for these…

Combinatorics · Mathematics 2024-06-11 Michael Drmota , Eva-Maria Hainzl , Nick Wormald