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math.CA2019
On the existence of an extremal function in the delsarte extremal problem
Marcell Gaál, Zsuzsanna Nagy-Csiha
This paper is concerned with a Delsarte type extremal problem. Denote by the set of positive definite continuous functions on a locally compact abelian group .…
math.CA2019
Minimal energy point systems on the unit circle and the real line
Marcell Gaál, Béla Nagy, Zsuzsanna Nagy-Csiha +1
In this paper, we investigate discrete logarithmic energy problems in the unit circle. We study the equilibrium configuration of electrons and pairs of external protons o…