Abstract
This paper gives new existence results for elliptic and evolutionary variational and quasi-variational inequalities. Specifically, we give an existence theorem for evolutionary variational inequalities involving different types of pseudo-monotone operators. Another existence result embarks on elliptic variational inequalities driven by maximal monotone operators. We propose a new recessivity assumption that extends all the classical coercivity conditions. We also obtain criteria for solvability of general quasi-variational inequalities treating in a unifying way elliptic and evolutionary problems. Two of the given existence results for evolutionary quasi-variational inequalities rely on Mosco-type continuity properties and Kluge’s fixed point theorem for set-valued maps. We also focus on the case of compact constraints in the evolutionary quasi-variational inequalities. Here a relevant feature is that the underlying space is the domain of a linear, maximal monotone operator endowed with the graph norm. Applications are also given.
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Dedicated to Prof. Franco Giannessi on his 80th birthday.
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Khan, A.A., Motreanu, D. Existence Theorems for Elliptic and Evolutionary Variational and Quasi-Variational Inequalities. J Optim Theory Appl 167, 1136–1161 (2015). https://doi.org/10.1007/s10957-015-0825-6
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DOI: https://doi.org/10.1007/s10957-015-0825-6
Keywords
- Quasi-variational inequalities
- Variational inequalities
- Hemivariational inequalities
- Monotone
- Pseudo-monotone
- Generalized pseudo-monotone
- Coercivity
- Asymptotic recessivity