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Regular exceptional family of elements with respect to isotone projection cones in Hilbert spaces and complementarity problems. (English) Zbl 1152.90623
Summary: Conditions for the non-existence of a regular exceptional family of elements with respect to an isotone projection cone in a Hilbert space will be presented. The obtained results will be used for generating existence theorems for a complementarity problem with respect to an isotone projection cone in a Hilbert space.

##### MSC:
 90C33 Complementarity and equilibrium problems and variational inequalities (finite dimensions) (aspects of mathematical programming)
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##### References:
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