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It is shown that Bernoulli numbers and tangent numbers (the derivatives of the tangent function at zero) can be obtained by means of easily defined triangles of numbers in several ways, some of them very similar to the Catalan triangle and…

Number Theory · Mathematics 2007-05-23 Jose Luis Arregui

Disks of bodies orbiting a much more massive central object are extremely common in astrophysics. When the orbits comprising such disks are eccentric, we show they are susceptible to a new dynamical instability. Gravitational forces between…

Earth and Planetary Astrophysics · Physics 2016-02-03 Ann-Marie Madigan , Michael McCourt

I give a formula for the zeta function of a projective toric hypersurface over a finite field and estimate its Newton polygon. As an application this formula allows us to compute the exact number of rational points on the families of…

Number Theory · Mathematics 2008-11-07 Chiu Fai Wong

The canonical partition function of a system of rotators (classical X-Y spins) on a lattice, coupled by terms decaying as the inverse of their distance to the power alpha, is analytically computed. It is also shown how to compute a…

Statistical Mechanics · Physics 2009-10-31 Alessandro Campa , Andrea Giansanti , Daniele Moroni

We intimate deeper connections between the Riemann zeta and gamma functions than often reported and further derive a new formula for expressing the value of $\zeta(2n+1)$ in terms of zeta at other fractional points. This paper also…

General Mathematics · Mathematics 2014-11-13 Michael A. Idowu

This paper continues a series of investigations on converging representations for the Riemann Zeta function. We generalize some identities which involve Riemann's zeta function, and moreover we give new series and integrals for the zeta…

Number Theory · Mathematics 2012-02-01 Alois Pichler

The zeta functions for the Schr\"odinger equation with a triangular potential are investigated. Values of the zeta functions are computed using both the Weierstrass factorization theorem and analytic continuation via contour integration.…

Mathematical Physics · Physics 2022-11-14 M. G. Naber

In this paper, we give a description of the possible poles of the local zeta function attached to a complex or real analytic mapping in terms of a log-principalization of an ideal associated to the mapping. When the mapping is a…

Algebraic Geometry · Mathematics 2014-02-26 E. Leon-Cardenal , Willem Veys , W. A. Zuniga-Galindo

We introduce the Area Integral for octonion-valued monogenic functions in the half-space. It is used to prove the existence of the non-tangential boundary values almost everywhere and of the normal boundary values at a given boundary point…

Complex Variables · Mathematics 2019-11-07 Alexander Kheyfits

Langlands provides a formula for certain product of orbital integrals in $GL(2, \mathbb{Q})$. Its generalization has become an important question for the strategy of Beyond Endoscopy. Arthur predicts this formula should coincide with a…

Number Theory · Mathematics 2024-02-14 Malors Espinosa

In this paper, we establish a connection between Apollonian packings and knot theory. We introduce new representations of links realized in the tangency graph of the regular crystallographic sphere packings. Particularly, we prove that any…

Geometric Topology · Mathematics 2024-06-04 Jorge L. Ramírez Alfonsín , Iván Rasskin

We give new integral and series representations of the Hurwitz zeta function. We also provide a closed-form expression of the coefficients of the Laurent expansion of the Hurwitz-zeta function about any point in the complex plane.

Number Theory · Mathematics 2012-05-04 Lazhar Fekih-Ahmed

For the Tornheim double zeta function T(s1,s2,s3) of complex variables,we obtain its functional equations,which are new.Using the calculus of r-th order derivative of zeta(s,alpha) as a function of alpha(developed in author[7])as the…

Number Theory · Mathematics 2011-08-17 Vivek V. Rane

Two multiplicative anomalies are evaluated for the determinant of the conformal higher spin propagating operator on spheres given by Tseytlin. One holds for the decomposition of the higher derivative product into its individual second order…

High Energy Physics - Theory · Physics 2015-06-11 J. S. Dowker

Given N points in the plane $P_1 P_2...P_N$ and a location $\Omega$, the union of discs with diameters $[\Omega P_i], i = 1, 2,...N$ covers the convex hull of the points. The location $\Omega_s$ minimizing the area covered by the union of…

Computational Geometry · Computer Science 2018-06-15 Yael Yankelevsky , Alfred M. Bruckstein

We consider the zeta function $\zeta_\Omega$ for the Dirichlet-to-Neumann operator of a simply connected planar domain $\Omega$ bounded by a smooth closed curve of perimeter $2\pi$. We prove that $\zeta_\Omega''(0)\ge…

Analysis of PDEs · Mathematics 2020-08-24 Alexandre Jollivet

Suppose we put an $\epsilon$-disk around each lattice point in the plane, and then we rotate this object around the origin for a set $\Theta$ of angles. When do we cover the whole plane, except for a neighborhood of the origin? This is the…

Classical Analysis and ODEs · Mathematics 2007-05-23 Alex Iosevich , Mihail N. Kolountzakis , Mate Matolcsi

We use our disc formula for the Siciak-Zahariuta extremal function to characterize the polynomial hull of a connected compact subset of complex affine space in terms of analytic discs.

Complex Variables · Mathematics 2007-05-23 Finnur Larusson , Ragnar Sigurdsson

We examine "partition zeta functions" analogous to the Riemann zeta function but summed over subsets of integer partitions. We prove an explicit formula for a family of partition zeta functions already shown to have nice properties -- those…

Number Theory · Mathematics 2021-05-12 Robert Schneider , Andrew V. Sills

The scalar functional determinants on sectors of the two-dimensional disc and spherical cap are determined for arbitrary angles (rational factors of $\pi$). The wholesphere and hemisphere expressions are also given, in low dimensions, for…

High Energy Physics - Theory · Physics 2009-10-22 J. S. Dowker