English

Pathwise stochastic integration with finite variation processes uniformly approximating c\`{a}dl\`{a}g processes

Probability 2017-06-26 v2

Abstract

For any real-valued stochastic process XX 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 XX 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.

Keywords

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

R2 v1 2026-06-21T22:39:31.717Z