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arXiv · 1311.7120

On maximal inequalities for purely discontinuous $L_q$-valued martingales

Carlo Marinelli
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Abstract

We prove maximal inequalities for $L_q$-valued martingales obtained by stochastic integration with respect to compensated random measures. A version of these estimates for integrals with respect to compensated Poisson random measures were first obtained by Dirksen (arXiv:1208:3885) using arguments based on inequalities for sums of independent Banach-space-valued random variables, geometric properties of Banach spaces, and decoupling inequalities. Our proofs are completely different and rely almost exclusively on classical stochastic analysis for real semimartingales.

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Carlo Marinelli. 2013-11-27. On maximal inequalities for purely discontinuous $L_q$-valued martingales. https://arxiv.org/abs/1311.7120

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