Our purpose is to characterize the multiparameter Gaussian processes, that is Gaussian sheets, that are equivalent in law to the Brownian sheet and to the fractional Brownian sheet. We survey multiparameter analogues of the Hitsuda, Girsanov and Shepp representations. As an application, we study a special type of stochastic equation with linear noise.
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Sottinen, T., Tudor, C.A. On the Equivalence of Multiparameter Gaussian Processes. J Theor Probab 19, 461–485 (2006). https://doi.org/10.1007/s10959-006-0022-5
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DOI: https://doi.org/10.1007/s10959-006-0022-5
Keywords
- Brownian sheet
- fractional Brownian sheet
- equivalence of Gaussian processes
- Hitsuda representation
- Shepp representation
- canonical representation of Gaussian processes
- Girsanov theorem
- stochastic differential equations