A fixed point theorem for measurable selection valued correspondences induced by upper Caratheodory correspondences
Fu, J. & Page, F.
(2022).
A fixed point theorem for measurable selection valued correspondences induced by upper Caratheodory correspondences.
(Systemic Risk Centre Discussion Papers 115).
Systemic Risk Centre, The London School of Economics and Political Science.
We show that any measurable selection valued correspondence induced by the composition of an m-tuple of real-valued Caratheodory functions with an upper Caratheodory (uC) correspondence has fixed points if the underlying uC correspondence in the composition contains a continuum valued uC sub-correspondence. Moreover, this composition of the m-tuple of real-valued Caratheodory functions with the continuum valued uC sub-correspondence induces a measurable selection valued sub-correspondence that is weak star upper semicontinuous.
| Item Type | Working paper |
|---|---|
| Copyright holders | © 2022 The Author(s) |
| Departments | LSE > Research Centres > Financial Markets Group > Systemic Risk Centre |
| Date Deposited | 04 Jul 2023 |
| URI | https://researchonline.lse.ac.uk/id/eprint/119623 |