| Título: | Integral and local limit theorems for level crossings of diffusions and the Skorohod problem |
| Autores: |
Łochowski, Rafał Marcin; Warsaw School of Economics and Prince Mohammad Bin Fahd University Ghomrasni, Raouf; The African Institute for Mathematical Sciences and University of Stellenbosch |
| Fecha: | 2014-01-02 |
| Publicador: | Electronic journal of probability |
| Fuente: |
 |
| Tipo: | Peer-reviewed Article |
| Tema: |
level crossings, interval crossings, the Skorohod problem, diffusions; semimartingales; local time; truncated variation 60F17; 60F15; 60G44; 60G17 |
| Descripción: | Using a new technique, based on the regularisation of a càdlàg process via the double Skorohod map, we obtain limit theorems for integrated numbers of level crossings of diffusions. This result is related to the recent results on the limit theorems for the truncated variation. We also extend to diffusions the classical result of Kasahara on the "local" limit theorem for the number of crossings of a Wiener process. We establish the correspondence between the truncated variation and the double Skorohod map. Additionally, we prove some auxiliary formulas for the Skorohod map with time-dependent boundaries. |
| Idioma: | Inglés |
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