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On the Support of Minimizers of Causal Variational Principles
Authors:Felix Finster  Daniela Schiefeneder
Affiliation:1. Fakult?t für Mathematik, Universit?t Regensburg, 93040, Regensburg, Germany
Abstract:A class of causal variational principles on a compact manifold is introduced and analyzed both numerically and analytically. It is proved under general assumptions that the support of a minimizing measure is either completely timelike, or it is singular in the sense that its interior is empty. In the examples of the circle, the sphere and certain flag manifolds, the general results are supplemented by a more detailed and explicit analysis of the minimizers. On the sphere, we get a connection to packing problems and the Tammes distribution. Moreover, the minimal action is estimated from above and below.
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