## Feynman-Kac functionals and positive solutions of $$1/2 \Delta u+qu=0$$.(English)Zbl 0496.60078

### MSC:

 60J45 Probabilistic potential theory 60J65 Brownian motion 31A30 Biharmonic, polyharmonic functions and equations, Poisson’s equation in two dimensions

### Keywords:

Feynman-Kac functionals; positive harmonic measure
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### References:

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