Download This PaperSimplified Stochastic Calculus via Semimartingale Representations
ArXiv preprint, 2020
27 Pages Posted: 23 Jun 2020
Date Written: June 21, 2020
Abstract
We develop a stochastic calculus that makes it easy to capture a variety of predictable transformations of semimartingales such as changes of variables, stochastic integrals, and their compositions. The framework offers a unified treatment of real-valued and complex-valued semimartingales. The proposed calculus is a blueprint for the derivation of new relationships among stochastic processes with specific examples provided in the paper.
Keywords: Complex-valued process; generalized Yor formula; Émery formula; Itô formula
JEL Classification: C65, G11
Suggested Citation: Suggested Citation
Černý, Aleš and Ruf, Johannes, Simplified Stochastic Calculus via Semimartingale Representations (June 21, 2020). ArXiv preprint, 2020. Available at SSRN: https://ssrn.com/abstract=3633638 or http://dx.doi.org/10.2139/ssrn.3633638
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