English

Variational calculus on Wiener space with respect to conditional expectations

Probability 2016-12-02 v3

Abstract

We give a variational formulation for logEν[efFt]-\log\mathbb{E}_\nu\left[e^{-f}|\mathcal{F}_t\right] for a large class of measures ν\nu. We give a refined entropic characterization of the invertibility of some perturbations of the identity. We also discuss the attainability of the infimum in the variational formulation and obtain a Pr\'ekopa-Leindler theorem for conditional expectations.

Keywords

Cite

@article{arxiv.1607.05555,
  title  = {Variational calculus on Wiener space with respect to conditional expectations},
  author = {Kévin Hartmann},
  journal= {arXiv preprint arXiv:1607.05555},
  year   = {2016}
}

Comments

arXiv admin note: substantial text overlap with arXiv:1607.05542, arXiv:1607.05488

R2 v1 2026-06-22T14:58:27.069Z