Pathwise stochastic integration with finite variation processes uniformly approximating c\`{a}dl\`{a}g processes
Abstract
For any real-valued stochastic process with c\'rdl\'rg paths we define non-empty family of processes which have locally finite total variation, have jumps of the same order as the process and uniformly approximate its paths on compacts. The application of the defined class is the definition of stochastic integral with semimartingale integrand and integrator as a limit of pathwise Lebesgue-Stieltjes integrals. This construction leads to the stochastic integral with some correction term (different from the Stratonovich integral). We compare the obtained result with classical results of Wong-Zakai and Bichteler on pathwise stochastic integration. As a "byproduct" we obtain an example of a series of double Skorohod maps of a standard Brownian motion, which is not a semimartingale.
Cite
@article{arxiv.1211.3868,
title = {Pathwise stochastic integration with finite variation processes uniformly approximating c\`{a}dl\`{a}g processes},
author = {Rafał M. Łochowski},
journal= {arXiv preprint arXiv:1211.3868},
year = {2017}
}
Comments
arXiv admin note: substantial text overlap with arXiv:1106.2630