Abstract
For a mixed stochastic differential equation containing both Wiener process and a Hölder continuous process with exponent γ > 1/2, we prove a stochastic viability theorem. As a consequence, we get a result about positivity of solution and a pathwise comparison theorem. An application to option price estimation is given.
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Melnikov, A., Mishura, Y. & Shevchenko, G. Stochastic Viability and Comparison Theorems for Mixed Stochastic Differential Equations. Methodol Comput Appl Probab 17, 169–188 (2015). https://doi.org/10.1007/s11009-013-9336-9
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DOI: https://doi.org/10.1007/s11009-013-9336-9
Keywords
- Mixed stochastic differential equation
- Pathwise integral
- Stochastic viability
- Comparison theorem
- Long-range dependence
- fractional Brownian motion
- Stochastic differential equation with random drift