Friday, December 14, 2012

1012.1589 (Felix Finster et al.)

On the Support of Minimizers of Causal Variational Principles    [PDF]

Felix Finster, Daniela Schiefeneder
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, the minimal action is estimated from above and below.
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