eprintid: 989 rev_number: 7 eprint_status: archive userid: 36 dir: disk0/00/00/09/89 datestamp: 2011-10-31 15:04:57 lastmod: 2011-11-03 13:19:36 status_changed: 2011-10-31 15:04:57 type: article metadata_visibility: show creators_name: Crimaldi, Irene creators_id: irene.crimaldi@imtlucca.it title: Convergence results for a normalized triangular array of symmetric random variables ispublished: pub subjects: HA subjects: QA divisions: EIC full_text_status: none abstract: For a triangular array of symmetric random variables (without any integrability condition) we replace the classical assumption of row-wise independence by that of row-wise joint symmetry. Under this weaker assumption we prove some results concerning the convergence in distribution of a suitable sequence of randomly normalized sums to the standard normal distribution. Then we exhibit a class of row-wise independent triangular arrays for which the ordinary sums fail to converge in distribution, while our results enable us to affirm the convergence in distribution of the normalized sums. date: 2002 date_type: published publication: Expositiones mathematicae volume: 20 number: 4 publisher: Elsevier pagerange: 375-384 id_number: doi:10.1016/S0723-0869(02)80014-7 refereed: TRUE issn: 0723-0869 official_url: http://dx.doi.org/10.1016/S0723-0869(02)80014-7 citation: Crimaldi, Irene Convergence results for a normalized triangular array of symmetric random variables. Expositiones mathematicae, 20 (4). pp. 375-384. ISSN 0723-0869 (2002)