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Duan's fixed point theorem: Proof and generalization
Fixed Point Theory and Applications volume 2006, Article number: 17563 (2006)
Abstract
Let be an H-space of the homotopy type of a connected, finite CW-complex, any map and the th power map. Duan proved that has a fixed point if . We give a new, short and elementary proof of this. We then use rational homotopy to generalize to spaces whose rational cohomology is the tensor product of an exterior algebra on odd dimensional generators with the tensor product of truncated polynomial algebras on even dimensional generators. The role of the power map is played by a -structure as defined by Hemmi-Morisugi-Ooshima. The conclusion is that and each has a fixed point.
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Arkowitz, M. Duan's fixed point theorem: Proof and generalization. Fixed Point Theory Appl 2006, 17563 (2006). https://doi.org/10.1155/FPTA/2006/17563
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DOI: https://doi.org/10.1155/FPTA/2006/17563