English

Conditional indicators

Probability 2024-05-20 v1

Abstract

In this paper, we introduce a large class of (so-called) conditional indicators, on a complete probability space with respect to a sub σ\sigma-algebra. A conditional indicator is a positive mapping, which is not necessary linear, but may share common features with the conditional expectation, such as the tower property or the projection property. Several characterizations are formulated. Beyond the definitions, we provide some non trivial examples that are used in finance and may inspire new developments in the theory of operators on Riesz spaces.

Keywords

Cite

@article{arxiv.2405.10677,
  title  = {Conditional indicators},
  author = {Dorsaf Cherif and Emmanuel Lepinette},
  journal= {arXiv preprint arXiv:2405.10677},
  year   = {2024}
}