Uniform Distribution Theory
Journal license

Journal

Uniform Distribution Theory


Volume
& Issue

Volume 7, Issue 2


Published
on

June 16, 2011


Pages

77-108


DOI

Article

Discrete Energy Asymptotics on a Riemannian Circle


Authors

J. S. Brauchart Affiliation:
School of Mathematics and Statistics, University of New South Wales, Sydney, NSW, 2052, Australia
, D. P. Hardin Affiliation:
Center for Constructive Approximation, Department of Mathematics, Vanderbilt University, Nashville, TN 37240, USA
and E. B. Saff Affiliation:
Center for Constructive Approximation, Department of Mathematics, Vanderbilt University, Nashville, TN 37240, USA


Abstract

We derive the complete asymptotic expansion in terms of powers of N for the geodesic f-energy of N equally spaced points on a rectifiable simple closed curve Γ in Rp, p ≥ 2, as N → ∞. For f decreasing and convex, such a point configuration minimizes the f-energy P j6=k f(d(x j, x k)), where d is the ge- odesic distance (with respect to Γ) between points on Γ. Completely monotonic functions, analytic kernel functions, Laurent series, and weighted kernel func- tions f are studied. Of particular interest are the geodesic Riesz potential 1/ds (s 6= 0) and the geodesic logarithmic potential log(1/d). By analytic continuation we deduce the expansion for all complex values of s.


Keywords

Discrete Energy Asymptotics, Geodesic Riesz Energy, Geodesic Logarithmic Energy, Riemannian Circle, Riemann Zeta Function, General Kernel Functions, Euler-MacLaurin Summation Formula.


Citation

Brauchart, J. S., Hardin, D. P., & Saff, E. B. (2012). Discrete energy asymptotics on a riemannian circle. Uniform Distribution Theory, 7(2), 77–108.

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