ArticleOriginal scientific text
Title
Semi-additive functionals and cocycles in the context of self-similarity
Authors 1, 2
Affiliations
- Department of Statistics and Operations Research, University of North Carolina, Chapel Hill, CB#3260, Hanes Hall, Chapel Hill, NC 27599, USA
- Department of Mathematics and Statistics, Boston University, 111 Cummington Street, Boston, MA 02215, USA
Abstract
Kernel functions of stable, self-similar mixed moving averages are known to be related to nonsingular flows. We identify and examine here a new functional occuring in this relation and study its properties. To prove its existence, we develop a general result about semi-additive functionals related to cocycles. The functional we identify, is helpful when solving for the kernel function generated by a flow. Its presence also sheds light on the previous results on the subject.
Keywords
stable, self-similar processes with stationary increments, mixed moving averages, nonsingular flows, cocycles, semi-additive functionals
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