Abstract
In the paper we prove the existence of probabilistic solutions to systems of the form −A u = F(x, u) + μ, where F satisfies a generalized sign condition and μ is a smooth measure. As for A we assume that it is a generator of a Markov semigroup determined by a right Markov process whose resolvent is order compact on L 1. This class includes local and nonlocal operators corresponding to Dirichlet forms as well as some operators which are not in the variational form. To study the problem we introduce new concept of compactness property relating the underlying Markov process to almost everywhere convergence. We prove some useful properties of the compactness property and provide its characterization in terms of Meyer’s property (L) of Markov processes and in terms of order compactness of the associated resolvent.
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Klimsiak, T. Right Markov Processes and Systems of Semilinear Equations with Measure Data. Potential Anal 44, 373–399 (2016). https://doi.org/10.1007/s11118-015-9517-y
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DOI: https://doi.org/10.1007/s11118-015-9517-y
Keywords
- Right Markov processes
- Dirichlet forms
- Semilinear elliptic systems
- Order compactness
- Probabilistic potential theory
- Measure data
- Smooth measure