The Riemann Hypothesis
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MATLAB The Language5 of Technical Computing Computation Visualization Programming Language Reference Manual Version 5 How to Contact The MathWorks: ☎ (508) 647-7000 Phone PHONE (508) 647-7001 Fax FAX ☎ (508) 647-7022 Technical Support Faxback Server FAX SERVER ✉ MAIL The MathWorks, Inc. Mail 24 Prime Park Way Natick, MA 01760-1500 http://www.mathworks.com Web INTERNET ftp.mathworks.com Anonymous FTP server @ [email protected] Technical support E-MAIL [email protected] Product enhancement suggestions [email protected] Bug reports [email protected] Documentation error reports [email protected] Subscribing user registration [email protected] Order status, license renewals, passcodes [email protected] Sales, pricing, and general information Language Reference Manual (November 1996) COPYRIGHT 1994 - 1996 by The MathWorks, Inc. All Rights Reserved. The software described in this document is furnished under a license agreement. The software may be used or copied only under the terms of the license agreement. No part of this manual may be photocopied or repro- duced in any form without prior written consent from The MathWorks, Inc. U.S. GOVERNMENT: If Licensee is acquiring the software on behalf of any unit or agency of the U. S. Government, the following shall apply: (a) for units of the Department of Defense: RESTRICTED RIGHTS LEGEND: Use, duplication, or disclosure by the Government is subject to restric- tions as set forth in subparagraph (c)(1)(ii) of the Rights in Technical Data and Computer Software Clause at DFARS 252.227-7013. (b) for any other unit or agency: NOTICE - Notwithstanding any other lease or license agreement that may pertain to, or accompany the delivery of, the computer software and accompanying documentation, the rights of the Government regarding its use, reproduction and disclosure are as set forth in Clause 52.227-19(c)(2) of the FAR. -
Two Elementary Formulae and Some Complicated Properties for Mertens Function3
TWO ELEMENTARY FORMULAE AND SOME COMPLICATED PROPERTIES FOR MERTENS FUNCTION RONG QIANG WEI Abstract. Two elementary formulae for Mertens function M(n) are obtained. With these formulae, M(n) can be calculated directly and simply, which can be easily imple- mented by computer. M(1) ∼ M(2 × 107) are calculated one by one. Based on these 2 × 107 samples, some of the complicated properties for Mertens function M(n), its 16479 zeros, the 10043 local maximum/minimum between two neighbor zeros, and the rela- tion with the cumulative sum of the squarefree integers, are understood numerically and empirically. Keywords: Mertens function Elementary formula Zeros Local maximum/minimum squarefree integers 1. Introduction The Mertens function M(n) is important in number theory, especially the calculation of this function when its argument is large. M(n) is defined as the cumulative sum of the M¨obius function µ(k) for all positive integers n, n (1) M(n)= µ(k) Xk=1 where the M¨obius function µ(k) is defined for a positive integer k by 1 k = 1 (2) µ(k)= 0 if k is divisible by a prime square ( 1)m if k is the product of m distinct primes − Sometimes the above definition can be extended to real numbers as follows: arXiv:1612.01394v2 [math.NT] 15 Dec 2016 (3) M(x)= µ(k) 1≤Xk≤x Furthermore, Mertens function has other representations. They are mainly shown in formula (4-7): 1 c+i∞ xs (4) M(x)= ds 2πi Zc−i∞ sζ(s) 1 2 RONG QIANG WEI where ζ(s) is the the Riemann zeta function, s is complex, and c> 1 (5) M(n)= exp(2πia) aX∈Fn where Fn is the Farey sequence of order n. -
Kung J., Rota G.C., Yan C.H. Combinatorics.. the Rota Way
This page intentionally left blank P1: ... CUUS456-FM cuus456-Kung 978 0 521 88389 4 November 28, 2008 12:21 Combinatorics: The Rota Way Gian-Carlo Rota was one of the most original and colorful mathematicians of the twentieth century. His work on the foundations of combinatorics focused on revealing the algebraic structures that lie behind diverse combinatorial areas and created a new area of algebraic combinatorics. His graduate courses influenced generations of students. Written by two of his former students, this book is based on notes from his courses and on personal discussions with him. Topics include sets and valuations, partially or- dered sets, distributive lattices, partitions and entropy, matching theory, free matrices, doubly stochastic matrices, Mobius¨ functions, chains and antichains, Sperner theory, commuting equivalence relations and linear lattices, modular and geometric lattices, valuation rings, generating functions, umbral calculus, symmetric functions, Baxter algebras, unimodality of sequences, and location of zeros of polynomials. Many exer- cises and research problems are included and unexplored areas of possible research are discussed. This book should be on the shelf of all students and researchers in combinatorics and related areas. joseph p. s. kung is a professor of mathematics at the University of North Texas. He is currently an editor-in-chief of Advances in Applied Mathematics. gian-carlo rota (1932–1999) was a professor of applied mathematics and natural philosophy at the Massachusetts Institute of Technology. He was a member of the Na- tional Academy of Science. He was awarded the 1988 Steele Prize of the American Math- ematical Society for his 1964 paper “On the Foundations of Combinatorial Theory I. -
Wei Zhang – Positivity of L-Functions and “Completion of the Square”
Riemann hypothesis Positivity of L-functions Completion of square Positivity on surfaces Positivity of L-functions and “Completion of square" Wei Zhang Massachusetts Institute of Technology Bristol, June 4th, 2018 1 Riemann hypothesis Positivity of L-functions Completion of square Positivity on surfaces Outline 1 Riemann hypothesis 2 Positivity of L-functions 3 Completion of square 4 Positivity on surfaces 2 Riemann hypothesis Positivity of L-functions Completion of square Positivity on surfaces Riemann Hypothesis (RH) Riemann zeta function 1 X 1 1 1 ζ(s) = = 1 + + + ··· ns 2s 3s n=1 Y 1 = ; s 2 ; Re(s) > 1 1 − p−s C p; primes Analytic continuation and Functional equation −s=2 Λ(s) := π Γ(s=2)ζ(s) = Λ(1 − s); s 2 C Conjecture The non-trivial zeros of the Riemann zeta function ζ(s) lie on the line 1 Re(s) = : 3 2 Riemann hypothesis Positivity of L-functions Completion of square Positivity on surfaces Riemann Hypothesis (RH) Riemann zeta function 1 X 1 1 1 ζ(s) = = 1 + + + ··· ns 2s 3s n=1 Y 1 = ; s 2 ; Re(s) > 1 1 − p−s C p; primes Analytic continuation and Functional equation −s=2 Λ(s) := π Γ(s=2)ζ(s) = Λ(1 − s); s 2 C Conjecture The non-trivial zeros of the Riemann zeta function ζ(s) lie on the line 1 Re(s) = : 3 2 Riemann hypothesis Positivity of L-functions Completion of square Positivity on surfaces Equivalent statements of RH Let π(X) = #fprimes numbers p ≤ Xg: Then Z X dt 1=2+ RH () π(X) − = O(X ): 2 log t Let X θ(X) = log p: p<X Then RH () jθ(X) − Xj = O(X 1=2+): 4 Riemann hypothesis Positivity of L-functions Completion of square -
The Generalized Dedekind Determinant
Contemporary Mathematics Volume 655, 2015 http://dx.doi.org/10.1090/conm/655/13232 The Generalized Dedekind Determinant M. Ram Murty and Kaneenika Sinha Abstract. The aim of this note is to calculate the determinants of certain matrices which arise in three different settings, namely from characters on finite abelian groups, zeta functions on lattices and Fourier coefficients of normalized Hecke eigenforms. Seemingly disparate, these results arise from a common framework suggested by elementary linear algebra. 1. Introduction The purpose of this note is three-fold. We prove three seemingly disparate results about matrices which arise in three different settings, namely from charac- ters on finite abelian groups, zeta functions on lattices and Fourier coefficients of normalized Hecke eigenforms. In this section, we state these theorems. In Section 2, we state a lemma from elementary linear algebra, which lies at the heart of our three theorems. A detailed discussion and proofs of the theorems appear in Sections 3, 4 and 5. In what follows below, for any n × n matrix A and for 1 ≤ i, j ≤ n, Ai,j or (A)i,j will denote the (i, j)-th entry of A. A diagonal matrix with diagonal entries y1,y2, ...yn will be denoted as diag (y1,y2, ...yn). Theorem 1.1. Let G = {x1,x2,...xn} be a finite abelian group and let f : G → C be a complex-valued function on G. Let F be an n × n matrix defined by F −1 i,j = f(xi xj). For a character χ on G, (that is, a homomorphism of G into the multiplicative group of the field C of complex numbers), we define Sχ := f(s)χ(s). -
Bounds of the Mertens Functions
Advances in Dynamical Systems and Applications. ISSN 0973-5321, Volume 16, Number 1, (2021) pp. 35-44 © Research India Publications https://dx.doi.org/10.37622/ADSA/16.1.2021.35-44 Bounds of the Mertens Functions Darrell Coxa, Sourangshu Ghoshb, Eldar Sultanowc aGrayson County College, Denison, TX 75020, USA bDepartment of Civil Engineering , Indian Institute of Technology Kharagpur, West Bengal, India cPotsdam University, 14482 Potsdam, Germany Abstract In this paper we derive new properties of Mertens function and discuss about a likely upper bound of the absolute value of the Mertens function √log(푥!) > |푀(푥)| when 푥 > 1. Using this likely bound we show that we have a sufficient condition to prove the Riemann Hypothesis. 1. INTRODUCTION We define the Mobius Function 휇(푘). Depending on the factorization of n into prime factors the function can take various values in {−1, 0, 1} 휇(푛) = 1 if n has even number of prime factors and it is also square- free(divisible by no perfect square other than 1) 휇(푛) = −1 if n has odd number of prime factors and it is also square-free 휇(푛) = 0 if n is divisible by a perfect square. 푛 Mertens function is defined as 푀(푛) = ∑푘=1 휇(푘) where 휇(푘) is the Mobius function. It can be restated as the difference in the number of square-free integers up to 푥 that have even number of prime factors and the number of square-free integers up to 푥 that have odd number of prime factors. The Mertens function rather grows very slowly since the Mobius function takes only the value 0, ±1 in both the positive and 36 Darrell Cox, Sourangshu Ghosh, Eldar Sultanow negative directions and keeps oscillating in a chaotic manner. -
A Matrix Inequality for Möbius Functions
Volume 10 (2009), Issue 3, Article 62, 9 pp. A MATRIX INEQUALITY FOR MÖBIUS FUNCTIONS OLIVIER BORDELLÈS AND BENOIT CLOITRE 2 ALLÉE DE LA COMBE 43000 AIGUILHE (FRANCE) [email protected] 19 RUE LOUISE MICHEL 92300 LEVALLOIS-PERRET (FRANCE) [email protected] Received 24 November, 2008; accepted 27 March, 2009 Communicated by L. Tóth ABSTRACT. The aim of this note is the study of an integer matrix whose determinant is related to the Möbius function. We derive a number-theoretic inequality involving sums of a certain class of Möbius functions and obtain a sufficient condition for the Riemann hypothesis depending on an integer triangular matrix. We also provide an alternative proof of Redheffer’s theorem based upon a LU decomposition of the Redheffer’s matrix. Key words and phrases: Determinants, Dirichlet convolution, Möbius functions, Singular values. 2000 Mathematics Subject Classification. 15A15, 11A25, 15A18, 11C20. 1. INTRODUCTION In what follows, [t] is the integer part of t and, for integers i, j > 1, we set mod(j, i) := j − i[j/i]. 1.1. Arithmetic motivation. In 1977, Redheffer [5] introduced the matrix Rn = (rij) ∈ Mn({0, 1}) defined by ( 1, if i | j or j = 1; rij = 0, otherwise and has shown that (see appendix) n X det Rn = M(n) := µ(k), k=1 where µ is the Möbius function and M is the Mertens function. This determinant is clearly related to two of the most famous problems in number theory, the Prime Number Theorem (PNT) and the Riemann Hypothesis (RH). Indeed, it is well-known that 1/2+ε PNT ⇐⇒ M(n) = o(n) and RH ⇐⇒ M(n) = Oε n 317-08 2 OLIVIER BORDELLÈS AND BENOIT CLOITRE (for any ε > 0). -
Mathematisches Forschungsinstitut Oberwolfach Analytic Number Theory
Mathematisches Forschungsinstitut Oberwolfach Report No. 50/2019 DOI: 10.4171/OWR/2019/50 Analytic Number Theory Organized by J¨org Br¨udern, G¨ottingen Kaisa Matom¨aki, Turku Robert C. Vaughan, State College Trevor D. Wooley, West Lafayette 3 November – 9 November 2019 Abstract. Analytic number theory is a subject which is central to modern mathematics. There are many important unsolved problems which have stim- ulated a large amount of activity by many talented researchers. At least two of the Millennium Problems can be considered to be in this area. Moreover in recent years there has been very substantial progress on a number of these questions. Mathematics Subject Classification (2010): 11Bxx, 11Dxx, 11Jxx-11Pxx. Introduction by the Organizers The workshop Analytic Number Theory, organised by J¨org Br¨udern (G¨ottingen), Kaisa Matom¨aki (Turku), Robert C. Vaughan (State College) and Trevor D. Woo- ley (West Lafayette) was well attended with over 50 participants from a broad geographic spectrum, all either distinguished and leading workers in the field or very promising younger researchers. Over the last decade or so there has been considerable and surprising movement in our understanding of a whole series of questions in analytic number theory and related areas. This includes the establishment of infinitely many bounded gaps in the primes by Zhang, Maynard and Tao, significant progress on our understand- ing of the behaviour of multiplicative functions such as the M¨obius function by Matom¨aki and Radziwi l l, the work on the Vinogradov -
Notes on the Riemann Hypothesis Ricardo Pérez-Marco
Notes on the Riemann Hypothesis Ricardo Pérez-Marco To cite this version: Ricardo Pérez-Marco. Notes on the Riemann Hypothesis. 2018. hal-01713875 HAL Id: hal-01713875 https://hal.archives-ouvertes.fr/hal-01713875 Preprint submitted on 21 Feb 2018 HAL is a multi-disciplinary open access L’archive ouverte pluridisciplinaire HAL, est archive for the deposit and dissemination of sci- destinée au dépôt et à la diffusion de documents entific research documents, whether they are pub- scientifiques de niveau recherche, publiés ou non, lished or not. The documents may come from émanant des établissements d’enseignement et de teaching and research institutions in France or recherche français ou étrangers, des laboratoires abroad, or from public or private research centers. publics ou privés. NOTES ON THE RIEMANN HYPOTHESIS RICARDO PEREZ-MARCO´ Abstract. Our aim is to give an introduction to the Riemann Hypothesis and a panoramic view of the world of zeta and L-functions. We first review Riemann's foundational article and discuss the mathematical background of the time and his possible motivations for making his famous conjecture. We discuss some of the most relevant developments after Riemann that have contributed to a better understanding of the conjecture. Contents 1. Euler transalgebraic world. 2 2. Riemann's article. 8 2.1. Meromorphic extension. 8 2.2. Value at negative integers. 10 2.3. First proof of the functional equation. 11 2.4. Second proof of the functional equation. 12 2.5. The Riemann Hypothesis. 13 2.6. The Law of Prime Numbers. 17 3. On Riemann zeta-function after Riemann. -
Of Triangles, Gas, Price, and Men
OF TRIANGLES, GAS, PRICE, AND MEN Cédric Villani Univ. de Lyon & Institut Henri Poincaré « Mathematics in a complex world » Milano, March 1, 2013 Riemann Hypothesis (deepest scientific mystery of our times?) Bernhard Riemann 1826-1866 Riemann Hypothesis (deepest scientific mystery of our times?) Bernhard Riemann 1826-1866 Riemannian (= non-Euclidean) geometry At each location, the units of length and angles may change Shortest path (= geodesics) are curved!! Geodesics can tend to get closer (positive curvature, fat triangles) or to get further apart (negative curvature, skinny triangles) Hyperbolic surfaces Bernhard Riemann 1826-1866 List of topics named after Bernhard Riemann From Wikipedia, the free encyclopedia Riemann singularity theorem Cauchy–Riemann equations Riemann solver Compact Riemann surface Riemann sphere Free Riemann gas Riemann–Stieltjes integral Generalized Riemann hypothesis Riemann sum Generalized Riemann integral Riemann surface Grand Riemann hypothesis Riemann theta function Riemann bilinear relations Riemann–von Mangoldt formula Riemann–Cartan geometry Riemann Xi function Riemann conditions Riemann zeta function Riemann curvature tensor Zariski–Riemann space Riemann form Riemannian bundle metric Riemann function Riemannian circle Riemann–Hilbert correspondence Riemannian cobordism Riemann–Hilbert problem Riemannian connection Riemann–Hurwitz formula Riemannian cubic polynomials Riemann hypothesis Riemannian foliation Riemann hypothesis for finite fields Riemannian geometry Riemann integral Riemannian graph Bernhard -
A Note on P´Olya's Observation Concerning
A NOTE ON POLYA'S´ OBSERVATION CONCERNING LIOUVILLE'S FUNCTION RICHARD P. BRENT AND JAN VAN DE LUNE Dedicated to Herman J. J. te Riele on the occasion of his retirement from the CWI in January 2012 Abstract. We show that a certain weighted mean of the Liou- ville function λ(n) is negative. In this sense, we can say that the Liouville function is negative \on average". 1. Introduction Q ep(n) For n 2 N let n = pjn p be the canonical prime factorization P of n and let Ω(n) := pjn ep(n). Here (as always in this paper) p is prime. Thus, Ω(n) is the total number of prime factors of n, counting multiplicities. For example: Ω(1) = 0, Ω(2) = 1, Ω(4) = 2, Ω(6) = 2, Ω(8) = 3, Ω(16) = 4, Ω(60) = 4, etc. Define Liouville's multiplicative function λ(n) = (−1)Ω(n). For ex- ample λ(1) = 1, λ(2) = −1, λ(4) = 1, etc. The M¨obiusfunction µ(n) may be defined to be λ(n) if n is square-free, and 0 otherwise. It is well-known, and follows easily from the Euler product for the Riemann zeta-function ζ(s), that λ(n) has the Dirichlet generating function 1 X λ(n) ζ(2s) = ns ζ(s) n=1 for Re (s) > 1. This provides an alternative definition of λ(n). Let L(n) := P λ(k) be the summatory function of the Liouville k≤n P function; similarly M(n) := k≤n µ(k) for the M¨obiusfunction. -
NUMBER THEORY and COMBINATORICS SEMINAR UNIVERSITY of LETHBRIDGE Contents
PAST SPEAKERS IN THE NUMBER THEORY AND COMBINATORICS SEMINAR OF THE DEPARTMENT OF MATHEMATICS & COMPUTER SCIENCE AT THE UNIVERSITY OF LETHBRIDGE http://www.cs.uleth.ca/~nathanng/ntcoseminar/ Organizers: Nathan Ng and Dave Witte Morris (starting Fall 2011) Amir Akbary (Fall 2007 – Fall 2010) Contents ........................... Fall 2020 2 Spring 2014 ....................... 48 ........................ Spring 2020 5 Fall 2013 .......................... 52 ........................... Fall 2019 9 Spring 2013 ....................... 55 ....................... Spring 2019 12 Fall 2012 .......................... 59 .......................... Fall 2018 16 Spring 2012 ....................... 63 ....................... Spring 2018 20 Fall 2011 .......................... 67 .......................... Fall 2017 24 Fall 2010 .......................... 70 ....................... Spring 2017 28 Spring 2010 ....................... 71 .......................... Fall 2016 31 Fall 2009 .......................... 73 ....................... Spring 2016 34 Spring 2009 ....................... 75 .......................... Fall 2015 39 Fall 2008 .......................... 77 ....................... Spring 2015 42 Spring 2008 ....................... 80 .......................... Fall 2014 45 Fall 2007 .......................... 83 Fall 2020 Open problem session Sep 28, 2020 Please bring your favourite (math) problems. Anyone with a problem to share will be given about 5 minutes to present it. We will also choose most of the speakers for the rest of the semester.