Let (left(B_{t}ight)_{t geqslant 0}) be a (mathrm{BM}^{1}) and set (tau_{a}=inf left{s geqslant 0: B_{s}=aight}) where (a in
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Let \(\left(B_{t}ight)_{t \geqslant 0}\) be a \(\mathrm{BM}^{1}\) and set \(\tau_{a}=\inf \left\{s \geqslant 0: B_{s}=aight\}\) where \(a \in \mathbb{R}\). Show that \(\tau_{a} \sim \tau_{-a}\) and \(\tau_{a} \sim a^{2} \tau_{1}\).
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Brownian Motion A Guide To Random Processes And Stochastic Calculus De Gruyter Textbook
ISBN: 9783110741254
3rd Edition
Authors: René L. Schilling, Björn Böttcher
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