# The Allegretto-Piepenbrink Theorem for strongly local forms

@inproceedings{Lenz2008TheAT, title={The Allegretto-Piepenbrink Theorem for strongly local forms}, author={Daniel H. Lenz and Peter Stollmann and Ivan Veselic}, year={2008} }

The existence of positive weak solutions is related to spectral information on the corresponding partial differential operator.

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