{"title":"On a Class of Lacunary Almost Newman Polynomials Modulo P and Density Theorems","authors":"D. Dutykh, J. Verger-Gaugry","doi":"10.2478/udt-2022-0007","DOIUrl":"https://doi.org/10.2478/udt-2022-0007","url":null,"abstract":"Abstract The reduction modulo p of a family of lacunary integer polynomials, associated with the dynamical zeta function ζβ(z)of the β-shift, for β> 1 close to one, is investigated. We briefly recall how this family is correlated to the problem of Lehmer. A variety of questions is raised about their numbers of zeroes in 𝔽p and their factorizations, via Kronecker’s Average Value Theorem (viewed as an analog of classical Theorems of Uniform Distribution Theory). These questions are partially answered using results of Schinzel, revisited by Sawin, Shusterman and Stoll, and density theorems (Frobenius, Chebotarev, Serre, Rosen). These questions arise from the search for the existence of integer polynomials of Mahler measure > 1 less than the smallest Salem number 1.176280. Explicit connection with modular forms (or modular representations) of the numbers of zeroes of these polynomials in 𝔽p is obtained in a few cases. In general it is expected since it must exist according to the Langlands program.","PeriodicalId":23390,"journal":{"name":"Uniform distribution theory","volume":"207 1","pages":"29 - 54"},"PeriodicalIF":0.0,"publicationDate":"2022-01-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"80469042","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Products of Integers with Few Nonzero Digits","authors":"H. Kaneko, T. Stoll","doi":"10.2478/udt-2022-0006","DOIUrl":"https://doi.org/10.2478/udt-2022-0006","url":null,"abstract":"Abstract Let s(n) be the number of nonzero bits in the binary digital expansion of the integer n. We study, for fixed k, ℓ, m, the Diophantine system s(ab)= k, s(a)= ℓ, and s(b)= m in odd integer variables a, b.When k =2 or k = 3, we establish a bound on ab in terms of ℓ and m. While such a bound does not exist in the case of k =4, we give an upper bound for min{a, b} in terms of ℓ and m.","PeriodicalId":23390,"journal":{"name":"Uniform distribution theory","volume":"7 1","pages":"11 - 28"},"PeriodicalIF":0.0,"publicationDate":"2021-12-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"76273774","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Mahler’s Conjecture on ξ(3/2)nmod 1","authors":"O. Strauch","doi":"10.2478/udt-2021-0007","DOIUrl":"https://doi.org/10.2478/udt-2021-0007","url":null,"abstract":"Abstract K. Mahler’s conjecture: There exists no ξ ∈ ℝ+ such that the fractional parts {ξ(3/2)n} satisfy 0 ≤ {ξ(3/2)n} < 1/2 for all n = 0, 1, 2,... Such a ξ, if exists, is called a Mahler’s Z-number. In this paper we prove that if ξ is a Z-number, then the sequence xn = {ξ(3/2)n}, n =1, 2,... has asymptotic distribution function c0(x), where c0(x)=1 for x ∈ (0, 1].","PeriodicalId":23390,"journal":{"name":"Uniform distribution theory","volume":"410 1","pages":"49 - 70"},"PeriodicalIF":0.0,"publicationDate":"2021-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"72560217","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Divisibility Parameters and the Degree of Kummer Extensions of Number Fields","authors":"Antonella Perucca, Pietro Sgobba, S. Tronto","doi":"10.2478/udt-2021-0008","DOIUrl":"https://doi.org/10.2478/udt-2021-0008","url":null,"abstract":"Abstract Let K be a number field, and let ℓ be a prime number. Fix some elements α1,...,αr of K× which generate a subgroup of K× of rank r. Let n1,...,nr, m be positive integers with m ⩾ ni for every i. We show that there exist computable parametric formulas (involving only a finite case distinction) to express the degree of the Kummer extension K(ζℓm, α1ℓn1,…,αrℓnr root {{ell ^{{n_1}}}} of {{alpha _1}} , ldots ,root {{ell ^{{n_r}}}} of {{alpha _r}} ) over K(ζℓm) for all n1,..., nr, m. This is achieved with a new method with respect to a previous work, namely we determine explicit formulas for the divisibility parameters which come into play.","PeriodicalId":23390,"journal":{"name":"Uniform distribution theory","volume":"82 1","pages":"71 - 88"},"PeriodicalIF":0.0,"publicationDate":"2021-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"88173860","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Balance and Pattern Distribution of Sequences Derived from Pseudorandom Subsets of ℤq","authors":"Huaning Liu, Arne Winterhof","doi":"10.2478/udt-2021-0009","DOIUrl":"https://doi.org/10.2478/udt-2021-0009","url":null,"abstract":"Abstract Let q be a positive integer and 𝒮={x0,x1,⋯,xT−1}⊆ℤq={0,1,…,q−1} {scr S} = {{x_0},{x_1}, cdots ,{x_{T - 1}}}subseteq {{rm{mathbb Z}}_q} = {0,1, ldots ,q - 1} with 0≤x0<x1<⋯<xT−1≤q−1. 0 le {x_0} < {x_1} <cdots< {x_{T - 1}} le q - 1. . We derive from S three (finite) sequences: (1) For an integer M ≥ 2let (sn)be the M-ary sequence defined by sn ≡ xn+1 − xn mod M, n =0, 1,...,T − 2. (2) For an integer m ≥ 2let (tn) be the binary sequence defined by sn≡xn+1−xn mod M,n=0,1,⋯,T−2. matrix{{{s_n} equiv {x_{n + 1}} - {x_n},bmod ,M,} & {n = 0,1, cdots ,T - 2.}cr} n =0, 1,...,T − 2. (3) Let (un) be the characteristic sequence of S, tn={1if 1≤xn+1−xn≤m−1,0,otherwise,n=0,1,…,T−2. matrix{{{t_n} = left{{matrix{1 hfill & {{rm{if}},1 le {x_{n + 1}} - {x_n} le m - 1,} hfillcr{0,} hfill & {{rm{otherwise}},} hfillcr}} right.} & {n = 0,1, ldots ,T - 2.}cr} n =0, 1,...,q − 1. We study the balance and pattern distribution of the sequences (sn), (tn)and (un). For sets S with desirable pseudorandom properties, more precisely, sets with low correlation measures, we show the following: (1) The sequence (sn) is (asymptotically) balanced and has uniform pattern distribution if T is of smaller order of magnitude than q. (2) The sequence (tn) is balanced and has uniform pattern distribution if T is approximately un={1if n∈𝒮,0,otherwise,n=0,1,…,q−1. matrix{{{u_n} = left{{matrix{1 hfill & {{rm{if}},n in {scr S},} hfillcr{0,} hfill & {{rm{otherwise}},} hfillcr}} right.} & {n = 0,1, ldots ,q - 1.}cr} . (3) The sequence (un) is balanced and has uniform pattern distribution if T is approximately q2. These results are motivated by earlier results for the sets of quadratic residues and primitive roots modulo a prime. We unify these results and derive many further (asymptotically) balanced sequences with uniform pattern distribution from pseudorandom subsets.","PeriodicalId":23390,"journal":{"name":"Uniform distribution theory","volume":"12 1","pages":"89 - 108"},"PeriodicalIF":0.0,"publicationDate":"2021-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"85046925","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"AO. Univ.-Prof. Dr. Reinhard Winkler (1964–2021) An Obituary","authors":"M. Goldstern, M. Drmota","doi":"10.2478/udt-2021-0011","DOIUrl":"https://doi.org/10.2478/udt-2021-0011","url":null,"abstract":"","PeriodicalId":23390,"journal":{"name":"Uniform distribution theory","volume":"54 1","pages":"129 - 136"},"PeriodicalIF":0.0,"publicationDate":"2021-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"84991438","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"On Some Properties of Irrational Subspaces","authors":"Vasiliy Neckrasov","doi":"10.2478/udt-2022-0002","DOIUrl":"https://doi.org/10.2478/udt-2022-0002","url":null,"abstract":"Abstract In this paper, we discuss some properties of completely irrational subspaces. We prove that there exist completely irrational subspaces that are badly approximable and, moreover, sets of such subspaces are winning in different senses. We get some bounds for Diophantine exponents of vectors that lie in badly approximable subspaces that are completely irrational; in particular, for any vector ξ from two-dimensional badly approximable completely irrational subspace of ℝd one has ω⌢(ξ)≤5-12 mathord{buildrel{lower3pthbox{$scriptscriptstylefrown$}}over omega } left( xi right) le {{sqrt {5 - 1} } over 2} . Besides that, some statements about the dimension of subspaces generated by best approximations to completely irrational subspace easily follow from properties that we discuss.","PeriodicalId":23390,"journal":{"name":"Uniform distribution theory","volume":"58 1","pages":"89 - 104"},"PeriodicalIF":0.0,"publicationDate":"2021-07-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"80238817","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"On the Classification of Solutions of Quantum Functional Equations with Cyclic and Semi-Cyclic Supports","authors":"L. Nguyen","doi":"10.2478/udt-2021-0001","DOIUrl":"https://doi.org/10.2478/udt-2021-0001","url":null,"abstract":"Abstract In this paper, we classify all solutions with cyclic and semi-cyclic semigroup supports of the functional equations arising from multiplication of quantum integers with fields of coefficients of characteristic zero. This also solves completely the classification problem proposed by Melvyn Nathanson and Yang Wang concerning the solutions, with semigroup supports which are not prime subsemigroups of ℕ, to these functional equations for the case of rational field of coefficients. As a consequence, we obtain some results for other problems raised by Nathanson concerning maximal solutions and extension of supports of solutions to these functional equations in the case where the semigroup supports are not prime subsemigroups of ℕ.","PeriodicalId":23390,"journal":{"name":"Uniform distribution theory","volume":"36 1","pages":"1 - 40"},"PeriodicalIF":0.0,"publicationDate":"2021-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"80510437","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Uniform Distribution of the Weighted Sum-of-Digits Functions","authors":"Ladislav Misík, S. Porubský, O. Strauch","doi":"10.2478/udt-2021-0005","DOIUrl":"https://doi.org/10.2478/udt-2021-0005","url":null,"abstract":"Abstract The higher-dimensional generalization of the weighted q-adic sum-of-digits functions sq,γ(n), n =0, 1, 2,..., covers several important cases of sequences investigated in the theory of uniformly distributed sequences, e.g., d-dimensional van der Corput-Halton or d-dimensional Kronecker sequences. We prove a necessary and sufficient condition for the higher-dimensional weighted q-adic sum-of-digits functions to be uniformly distributed modulo one in terms of a trigonometric product. As applications of our condition we prove some upper estimates of the extreme discrepancies of such sequences, and that the existence of distribution function g(x)= x implies the uniform distribution modulo one of the weighted q-adic sum-of-digits function sq,γ (n), n = 0, 1, 2,... We also prove the uniform distribution modulo one of related sequences h1sq, γ (n)+h2sq,γ (n +1), where h1 and h2 are integers such that h1 + h2 ≠ 0 and that the akin two-dimensional sequence sq,γ (n), sq,γ (n +1) cannot be uniformly distributed modulo one if q ≥ 3. The properties of the two-dimensional sequence sq,γ (n),sq,γ (n +1), n =0, 1, 2,..., will be instrumental in the proofs of the final section, where we show how the growth properties of the sequence of weights influence the distribution of values of the weighted sum-of-digits function which in turn imply a new property of the van der Corput sequence.","PeriodicalId":23390,"journal":{"name":"Uniform distribution theory","volume":"1 1","pages":"93 - 126"},"PeriodicalIF":0.0,"publicationDate":"2021-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"79639055","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Insertion in Constructed Normal Numbers","authors":"V. Becher","doi":"10.2478/udt-2022-0008","DOIUrl":"https://doi.org/10.2478/udt-2022-0008","url":null,"abstract":"Abstract Defined by Borel, a real number is normal to an integer base b ≥ 2 if in its base-b expansion every block of digits occurs with the same limiting frequency as every other block of the same length. We consider the problem of insertion in constructed base-b normal expansions to obtain normality to base (b + 1).","PeriodicalId":23390,"journal":{"name":"Uniform distribution theory","volume":"26 1","pages":"55 - 76"},"PeriodicalIF":0.0,"publicationDate":"2021-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"82807863","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}