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\(\delta\)-exceedance records and random adaptive walks. (English) Zbl 1347.60051

The purpose of this paper is to provide a careful analysis of the generalized \(\delta\)-exceedance record problem with a monotonically varying negative effect. Adaptive random walks will play a basic role in this study. The mathematical problem is first stated, and then the authors consider successively decreasing handicap and increasing handicap. They discuss the length of adaptive walk and consider successively the Gumbel class and the Weibull class.

MSC:

60G50 Sums of independent random variables; random walks
60G70 Extreme value theory; extremal stochastic processes