Journal
LITHUANIAN MATHEMATICAL JOURNAL
Volume 54, Issue 1, Pages 8-34Publisher
SPRINGER
DOI: 10.1007/s10986-014-9224-1
Keywords
long-range dependence; kernel estimation; repeated time series; covariance function; higher-order kernels; functional limit theorem; FDA
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Funding
- German Research Foundation (DFG) through research unit FOR 1882 Psychoeconomics
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We consider kernel estimation of trend and covariance functions in models typically encountered in functional data analysis (FDA), with the modification that the random curves are perturbed by error processes that exhibit short- or long-range dependence. Uniform convergence of standardized maximal differences between estimated and true (trend and covariance) functions is established. For the covariance function, a transformation based on contrasts is proposed that does not require explicit trend estimation. Improved estimators can be obtained by using higher-order kernels.
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