Page 1 Next

Displaying 1 – 20 of 72

Showing per page

Second moments of Dirichlet L -functions weighted by Kloosterman sums

Tingting Wang (2012)

Czechoslovak Mathematical Journal

For the general modulo q 3 and a general multiplicative character χ modulo q , the upper bound estimate of | S ( m , n , 1 , χ , q ) | is a very complex and difficult problem. In most cases, the Weil type bound for | S ( m , n , 1 , χ , q ) | is valid, but there are some counterexamples. Although the value distribution of | S ( m , n , 1 , χ , q ) | is very complicated, it also exhibits many good distribution properties in some number theory problems. The main purpose of this paper is using the estimate for k -th Kloosterman sums and analytic method to study the asymptotic properties...

Séries hypergéométriques et irrationalité des valeurs de la fonction zêta de Riemann

Tanguy Rivoal (2003)

Journal de théorie des nombres de Bordeaux

Nous effectuons un survol des résultats connus sur la nature diophantienne des valeurs de la fonction zêta de Riemann aux entiers. Nous mettons en particulier l’accent sur le rôle important des séries hypergéométriques dans les démonstrations de l’irrationalité de ζ ( 2 ) , ζ ( 3 ) et d’une infinité des nombres ζ ( 2 n + 1 ) .

Séries hypergéométriques multiples et polyzêtas

J. Cresson, S. Fischler, T. Rivoal (2008)

Bulletin de la Société Mathématique de France

Nous décrivons un algorithme théorique et effectif permettant de démontrer que des séries et intégrales hypergéométriques multiples relativement générales se décomposent en combinaisons linéaires à coefficients rationnels de polyzêtas.

Sharp bounds for the intersection of nodal lines with certain curves

Junehyuk Jung (2014)

Journal of the European Mathematical Society

Let Y be a hyperbolic surface and let φ be a Laplacian eigenfunction having eigenvalue - 1 / 4 - τ 2 with τ > 0 . Let N ( φ ) be the set of nodal lines of φ . For a fixed analytic curve γ of finite length, we study the number of intersections between N ( φ ) and γ in terms of τ . When Y is compact and γ a geodesic circle, or when Y has finite volume and γ is a closed horocycle, we prove that γ is “good” in the sense of [TZ]. As a result, we obtain that the number of intersections between N ( φ ) and γ is O ( τ ) . This bound is sharp.

Sign changes of certain arithmetical function at prime powers

Rishabh Agnihotri, Kalyan Chakraborty (2021)

Czechoslovak Mathematical Journal

We examine an arithmetical function defined by recursion relations on the sequence { f ( p k ) } k and obtain sufficient condition(s) for the sequence to change sign infinitely often. As an application we give criteria for infinitely many sign changes of Chebyshev polynomials and that of sequence formed by the Fourier coefficients of a cusp form.

Simple zeros of degree 2 L -functions

Andrew R. Booker (2016)

Journal of the European Mathematical Society

We prove that the complete L -functions of classical holomorphic newforms have infinitely many simple zeros.

Currently displaying 1 – 20 of 72

Page 1 Next