Order-theoretical fixed point theorems for correspondences and application in game theory

Autor: Yu, Lu
Rok vydání: 2024
Předmět:
Druh dokumentu: Working Paper
Popis: For an ascending correspondence $F:X\to 2^X$ with chain-complete values on a complete lattice $X$, we prove that the set of fixed points is a complete lattice. This strengthens Zhou's fixed point theorem. For chain-complete posets that are not necessarily lattices, we generalize the Abian-Brown and the Markowsky fixed point theorems from single-valued maps to multivalued correspondences. We provide an application in game theory.
Databáze: arXiv