A new method of proving a priori bounds for superlinear elliptic PDE

Boyan Sirakov

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arXiv · 1904.03245

A new method of proving a priori bounds for superlinear elliptic PDE

Boyan Sirakov

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Abstract

We describe a new method of proving a priori bounds for positive supersolutions and solutions of superlinear elliptic PDE, based on global weak Harnack inequalities and a quantitative Hopf lemma. Novel results based on the method include: (i) equations without a boundary condition on the whole boundary; (ii) equations with nonlinearities which do not have precise growth at infinity; (iii) systems of inequalities with opposite sign.

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Boyan Sirakov. 2019-04-05. A new method of proving a priori bounds for superlinear elliptic PDE. https://arxiv.org/abs/1904.03245

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