A Generalization of the Submartingale Property: Maximal Inequality and Applications to Various Stochastic Processes

János Engländer ()
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János Engländer: University of Colorado

Journal of Theoretical Probability, 2020, vol. 33, issue 1, 506-521

Abstract: Abstract We generalize the notion of the submartingale property and Doob’s inequality. Furthermore, we show how the latter leads to new inequalities for several stochastic processes: certain time series, Lévy processes, random walks, processes with independent increments, branching processes and continuous state branching processes, branching diffusions and superdiffusions, as well as some Markov processes, including geometric Brownian motion.

Keywords: a-achieving process; Doob’s inequality; Maximal inequality; Time series; Lévy process; Processes with independent increments; Submartingale; Random walk; Branching process; Branching diffusion; Superprocess; Continuous state branching process; Markov process; Geometric Brownian motion; Approximate convexity; 60E15; 60G45; 60G48; 60G51; 60J80 (search for similar items in EconPapers)
Date: 2020
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DOI: 10.1007/s10959-019-00880-6

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