On the support of extremal martingale measures with given marginals: the countable case
- đ¤ Speaker: Luciano Campi
- đ Date & Time: Tuesday 27 October 2015, 15:00 - 16:00
- đ Venue: CMS, MR15
Abstract
After discussing some characterisations of extremal measures with given marginals available in the literature, going from functional analysis to combinatorics, we will turn to their martingale counter- parts whose study is related to robust pricing and hedging. In particular, we will give some sufficient and necessary conditions with a geometric and combinatorial flavour for a given set to be the support of an extremal martingale measure with pre-specified discrete marginals. Some open problems will be discussed as well. This is based on joint work with Claude Martini.
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Luciano Campi
Tuesday 27 October 2015, 15:00-16:00