Equilibrium existence theorems in KKM spaces
β Scribed by Sehie Park
- Publisher
- Elsevier Science
- Year
- 2008
- Tongue
- English
- Weight
- 632 KB
- Volume
- 69
- Category
- Article
- ISSN
- 0362-546X
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β¦ Synopsis
An abstract convex space satisfying the KKM principle is called a KKM space. This class of spaces contains G-convex spaces properly. In this work, we show that a large number of results in KKM theory on G-convex spaces also hold on KKM spaces. Examples of such results are theorems of Sperner and Alexandroff-Pasynkoff, Fan-Browder type fixed point theorems, Horvath type fixed point theorems, Ky Fan type minimax inequalities, variational inequalities, von Neumann type minimax theorems, Nash type equilibrium theorems, and Himmelberg type fixed point theorems.
π SIMILAR VOLUMES
In hyperconvex metric spaces, we introduce KnasterαKuratowskiαMazurkiewicz mappings. Then we prove an analogue to Ky Fan's fixed point theorem in hyperconvex metric spaces.
Some new generalized G-KKM and generalized S-KKM theorems are proved under the noncompact setting of generalized convex spaces. As applications, some new minimax inequalities, saddle point theorems, a coincidence theorem, and a fixed point theorem are given in generalized convex spaces. These theore