An Example Concerning CLT and LIL in Banach Space
Jain, Naresh C.
Ann. Probab., Tome 4 (1976) no. 6, p. 690-694 / Harvested from Project Euclid
Let $E$ be a separable Banach space with norm $\|\bullet\|$. Let $\{X_n\}$ be a sequence of $E$-valued independent, identically distributed random variables, and $S_n = X_1 + \cdots + X_n$. If $\{n^{-\frac{1}{2}}S_n\}$ converges in the sense of weak convergence of the corresponding measures in $E$, and $E$ is the real line, then it is well known that $\mathscr{E}\lbrack X_1 \rbrack = 0$ and $\mathscr{E}\lbrack\|X_1\|^2\rbrack < \infty$; consequently, the Hartman-Wintner law of the iterated logarithm also holds. We give an example here, with $E = C\lbrack 0, 1\rbrack$, such that the above convergence does not imply $\mathscr{E}\lbrack \|X_1\|^2 \rbrack < \infty$, nor does it imply the law of the iterated logarithm.
Publié le : 1976-08-14
Classification:  Banach space valued random variables,  sums of independent random variables,  central limit theorem,  law of the iterated logarithm,  60B10,  60G15
@article{1176996040,
     author = {Jain, Naresh C.},
     title = {An Example Concerning CLT and LIL in Banach Space},
     journal = {Ann. Probab.},
     volume = {4},
     number = {6},
     year = {1976},
     pages = { 690-694},
     language = {en},
     url = {http://dml.mathdoc.fr/item/1176996040}
}
Jain, Naresh C. An Example Concerning CLT and LIL in Banach Space. Ann. Probab., Tome 4 (1976) no. 6, pp.  690-694. http://gdmltest.u-ga.fr/item/1176996040/