Convergence of functionals of sums of r.v.s to local times of fractional stable motions
Jeganathan, P.
Ann. Probab., Tome 32 (2004) no. 1A, p. 1771-1795 / Harvested from Project Euclid
Consider a sequence Xk=∑j=0cjξk−j, k≥1, where cj, j≥0, is a sequence of constants and ξj, −∞k=∑j=1kXj. Under suitable conditions on the constants cj it is known that for a suitable normalizing constant γn, the partial sum process γn−1S[nt] converges in distribution to a linear fractional stable motion (indexed by α and H, 0k. In this paper it is established that the process n−1βnk=1[nt]f(βnn−1Sk+x)) converges in distribution to ( ∫−∞f( y) dy)L(t,−x), where L(t,x) is the local time of the linear fractional stable motion, for a wide class of functions f( y) that includes the indicator functions of bounded intervals of the real line. Here βn→∞ such that n−1βn→0. The only further condition that is assumed on the distribution of ξ1 is that either it satisfies the Cramér’s condition or has a nonzero absolutely continuous component. The results have motivation in large sample inference for certain nonlinear time series models.
Publié le : 2004-07-14
Classification:  Fractional stable motion,  fractional Brownian motion,  local time,  fractional ARIMA process,  functionals of sums of fractional ARIMA,  weak convergence to local times,  heavy tailed distributions,  60F05,  60G18,  60J55,  62M10,  62J02
@article{1089808411,
     author = {Jeganathan, P.},
     title = {Convergence of functionals of sums of r.v.s to local times of fractional stable motions},
     journal = {Ann. Probab.},
     volume = {32},
     number = {1A},
     year = {2004},
     pages = { 1771-1795},
     language = {en},
     url = {http://dml.mathdoc.fr/item/1089808411}
}
Jeganathan, P. Convergence of functionals of sums of r.v.s to local times of fractional stable motions. Ann. Probab., Tome 32 (2004) no. 1A, pp.  1771-1795. http://gdmltest.u-ga.fr/item/1089808411/