On Lindeberg-Feller Limit Theorem

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Abstract

In the Lindeberg-Feller theorem, the Lindeberg condition is present. The fulfillment of this condition must be checked for any ε > 0. We formulae a new condition in terms of some generalization of moments of order 2 + α, which does not depend on ε, and show that this condition is equivalent to the Lindeberg condition, and if this condition is valid for some α > 0 then it is valid for any α > 0. In the non-classical setting (in the absence of conditions of a uniform infinitely smallness) V.I. Rotar formulated an analogue of the Lindeberg condition in terms of the second pseudo-moments. The paper presents the same modification of Rotar`s condition, which does not depend on ε. In addition, we discuss variants of the simple proofs of theorems of Lindeberg-Feller and Rotar and some related inequalities.

About the authors

E. L. Presman

Central Economics and Mathematics Institute of the Russian Academy of Sciences

Author for correspondence.
Email: presman@cemi.rssi.ru
Russian Federation, 47, Nakhimovsky prospekt, Moscow, 117418

Sh. K. Formanov

Uzbekistan Academy of Sciences V.I.Romanovskiy Institute of Mathematics

Email: shakirformanov@yandex.ru
Uzbekistan, 81, Mirzo Ulugbek street, Tashkent, 100041

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