FIXED POINT INDEX FOR SOME CLASSES OF MULTIVALUED MAPPINGS IN ORDERED BANACH SPACES
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Abstract
The fixed point index theory for multivalued mappings in ordered Banach spaces developed by many mathematicians in the 1970s has provided a new and effective tool in studying differential inclusions and partial derivatives. In this paper, from the general properties of the fixed point index for multivalued mappings in cones, we deduce new results on computing this index, which are easily applied in concrete problems. Partially, we prove that the derivative of a compact upper semi-continuous multivalued mapping A with convex closed values is a compact mapping, and the fixed point index of A can be computed by the index of its derivative.
Keywords
compact upper semi-continuous multivalued mappings, cone, fixed point index, order relations
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References
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