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Une propriété de continuité du temps local

Author: Lucien Chevalier
Journal: Proc. Amer. Math. Soc. 131 (2003), 933-936
MSC (2000): Primary 60G44
Published electronically: October 15, 2002
MathSciNet review: 1937439
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Abstract: Let $L^0(M)$ denote the local time (at 0) associated with a martingale $M$. The aim of this note is to prove that the mapping $M \mapsto L^0(M)$ is continuous from $L^1$ into weak-$L^1$.

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Additional Information

Lucien Chevalier
Affiliation: Institut Fourier, U.M.R. 5582 C.N.R.S., Université Joseph Fourier, B.P. 74, 38402 Saint Martin d’Hères, France

Keywords: Martingales, continuity, local time
Received by editor(s): August 18, 2001
Published electronically: October 15, 2002
Communicated by: Claudia M. Neuhauser
Article copyright: © Copyright 2002 American Mathematical Society