Sub-supersolution method and extremal solutions for higher order quasi-linear elliptic hemi-variational inequalities. (English) Zbl 1110.49012

Summary: We generalize the sub-supersolution method for a class of higher order quasi-linear elliptic hemi-variational inequalities. Using the notion of sub and supersolution, we prove the existence, comparison, compactness and extremality results for the higher order quasi-linear elliptic hemi-variational inequality under considerations.


49J40 Variational inequalities
47J20 Variational and other types of inequalities involving nonlinear operators (general)
35J50 Variational methods for elliptic systems
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