Constrained energy problems with external fields

Details Constrained energy problems with external fields Constrained energy problems with external fields

2010-01-25

arxiv.org/abs/1001.4147v1

Mathematics

Classical Analysis and ODEs

10 pages

Scientific paper

Given a positive definite kernel in a locally compact space, we study a minimal energy problem in the presence of an external field over the class of all nonnegative Radon measures that are supported by a given closed noncompact set, satisfy certain normalizing assumptions, and do not exceed a fixed measure serving as a constraint. Under general assumptions, we establish the existence of a minimizing measure and analyze its continuity properties in the weak* and strong topologies when the set and the constraint are both varied. We also give a description of the weighted potential of a minimizing measure and single out its characteristic properties. Such results are mostly new even for classical kernels, which is important in applications.

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