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A Nash type solution for hemivariational inequality systems. (English) Zbl 1229.47103

The authors prove an existence result for a general class of hemivariational inequality systems using the Ky Fan version of the KKM theorem [K. Fan, Math. Ann. 266, 519–537 (1984; Zbl 0515.47029)] or Tarafdar fixed points [E. Tarafdar, J. Math. Anal. Appl. 128, 475–479 (1987; Zbl 0644.47050)]. As application, an infinite-dimensional version is given for the existence result of Nash generalized derivative points recently introduced by A. Kristály [Proc. Am. Math. Soc. 138, No. 5, 1803–1810 (2010; Zbl 1189.91018)]. An application is also proposed to a general hemivariational inequality system.

MSC:

47J20 Variational and other types of inequalities involving nonlinear operators (general)
58E05 Abstract critical point theory (Morse theory, Lyusternik-Shnirel’man theory, etc.) in infinite-dimensional spaces
49N70 Differential games and control

References:

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