Convergence of functionals of sums of r.v.s to local times of fractional stable motions. (Q1878981)
From MaRDI portal
scientific article
| Language | Label | Description | Also known as |
|---|---|---|---|
| English | Convergence of functionals of sums of r.v.s to local times of fractional stable motions. |
scientific article |
Statements
Convergence of functionals of sums of r.v.s to local times of fractional stable motions. (English)
0 references
15 September 2004
0 references
The author studies the asymptotical properties of the process \((\beta_n/n)\sum_{k=1}^{[nt]}f (\beta_n(S_k/\gamma_n+ x)),\) where \(S_k=\sum_{j=1}^k\sum_{m=0}^\infty c_m\xi_{j-m},\) \((c_m)\) is a sequence of constants, \((\xi_j)\) is a sequence of i.i.d. random variables belonging to the domain of attraction of a strictly stable law with index \(0<\alpha\leq 2,\) \((\beta_n)\) is a sequence of constants such that \(\beta_n\to\infty,\) \(\beta_n/n\to 0.\) The limiting distribution is written in terms of the local time of the linear fractional stable motion. The only conditions on the distribution of \(\xi_1\) are Cramer's condition and the existence of nonzero absolutely continuous components.
0 references
fractional stable motion
0 references
fractional Brownian motion
0 references
local time
0 references
ARIMA
0 references
functional of sum
0 references
weak convergence to local times
0 references
heavy tailed distributions
0 references