Abstract
Using a generalization of the skew-product representation of planar Brownian motion and the analogue of Spitzer’s celebrated asymptotic Theorem for stable processes due to Bertoin and Werner, for which we provide a new easy proof, we obtain some limit Theorems for the exit time from a cone of stable processes of index α ∈ (0, 2). We also study the case t → 0 and we prove some Laws of the Iterated Logarithm (LIL) for the (well-defined) winding process associated to our planar stable process.
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Notes
- 1.
When we simply write: Brownian motion, we always mean real-valued Brownian motion, starting from 0. For two-dimensional Brownian motion, we indicate planar or complex BM.
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Acknowledgements
The author S. Vakeroudis is very grateful to Prof. M. Yor for the financial support during his stay at the University of Manchester as a Post Doc fellow invited by Prof. R.A. Doney.
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Doney, R.A., Vakeroudis, S. (2013). Windings of Planar Stable Processes. In: Donati-Martin, C., Lejay, A., Rouault, A. (eds) Séminaire de Probabilités XLV. Lecture Notes in Mathematics(), vol 2078. Springer, Heidelberg. https://doi.org/10.1007/978-3-319-00321-4_10
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