3 research outputs found

    Π Ρ–Π²Π½ΠΎΠΌΡ–Ρ€Π½ΠΈΠΉ підсилСний Π·Π°ΠΊΠΎΠ½ Π²Π΅Π»ΠΈΠΊΠΈΡ… чисСл Π±Π΅Π· ΠΏΡ€ΠΈΠΏΡƒΡ‰Π΅Π½ΡŒ стосовно класу ΠΌΠ½ΠΎΠΆΠΈΠ½

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    We study the sums of identically distributed random variables whose indices belong to certain sets of a given family A in R^d, d >= 1. We prove that sums over scaling sets S(kA) possess a kind of the uniform in A strong law of large numbers without any assumption on the class A in the case of pairwise independent random variables with finite mean. The well known theorem due to R. Bass and R. Pyke is a counterpart of our result proved under a certain extra metric assumption on the boundaries of the sets of A and with an additional assumption that the underlying random variables are mutually independent. These assumptions allow to obtain a slightly better result than in our case. As shown in the paper, the approach proposed here is optimal for a wide class of other normalization sequences satisfying the Martikainen–Petrov condition and other families A. In a number of examples we discuss the necessity of the Bass–Pyke conditions. We also provide a relationship between the uniform strong law of large numbers and the one for subsequences.Key words:Β sums of random variables, uniform in a family of sets limit results, strong law of large numbers.Pages of the article in the issue:Β 39 - 48Language of the article: UkrainianМи Π²ΠΈΠ²Ρ‡Π°Ρ”ΠΌΠΎ суми ΠΎΠ΄Π½Π°ΠΊΠΎΠ²ΠΎ Ρ€ΠΎΠ·ΠΏΠΎΠ΄Ρ–Π»Π΅Π½ΠΈΡ… Π²ΠΈΠΏΠ°Π΄ΠΊΠΎΠ²ΠΈΡ… Π²Π΅Π»ΠΈΡ‡ΠΈΠ½, індСкси яких Π½Π°Π»Π΅ΠΆΠ°Ρ‚ΡŒ ΠΌΠ½ΠΎΠΆΠΈΠ½Π°ΠΌ Π· ΠΏΠ΅Π²Π½ΠΎΡ— сім'Ρ— A Π² R^d, d>=1. Для Ρ‚Π°ΠΊΠΈΡ… сум Π΄ΠΎΠ²Π΅Π΄Π΅Π½ΠΎ Ρ‚Π°ΠΊ Π·Π²Π°Π½Ρƒ Ρ€Ρ–Π²Π½ΠΎΠΌΡ–Ρ€Π½Ρƒ Ρƒ класі ΠΌΠ½ΠΎΠΆΠΈΠ½ Ρ‚Π΅ΠΎΡ€Π΅ΠΌΡƒ ΠΏΡ€ΠΎ підсилСний Π·Π°ΠΊΠΎΠ½ Π²Π΅Π»ΠΈΠΊΠΈΡ… чисСл Π±Π΅Π· ТодногообмСТСння Π½Π° A Ρƒ Π²ΠΈΠΏΠ°Π΄ΠΊΡƒ ΠΏΠΎΠΏΠ°Ρ€Π½ΠΎ Π½Π΅Π·Π°Π»Π΅ΠΆΠ½ΠΈΡ… Π²ΠΈΠΏΠ°Π΄ΠΊΠΎΠ²ΠΈΡ… Π²Π΅Π»ΠΈΡ‡ΠΈΠ½ Π·Ρ– скінчСним ΠΌΠ°Ρ‚Π΅ΠΌΠ°Ρ‚ΠΈΡ‡Π½ΠΈΠΌ сподіванням. Π’Ρ–Π΄ΠΎΠΌΠ° Ρ‚Π΅ΠΎΡ€Π΅ΠΌΠ° Басса-Пайка Ρ” Π°Π½Π°Π»ΠΎΠ³ΠΎΠΌ ΠΎΡ‚Ρ€ΠΈΠΌΠ°Π½ΠΎΠ³ΠΎ Ρ€Π΅Π·ΡƒΠ»ΡŒΡ‚Π°Ρ‚Ρƒ, Π² якій Π²ΠΈΠΊΠΎΡ€ΠΈΡΡ‚ΠΎΠ²ΡƒΡ”Ρ‚ΡŒΡΡ ΠΏΠ΅Π²Π½Π΅ Π΄ΠΎΠ΄Π°Ρ‚ΠΊΠΎΠ²Π΅ обмСТСння Π½Π° Π³Ρ€Π°Π½ΠΈΡ†Ρ– ΠΌΠ½ΠΎΠΆΠΈΠ½, Π° Ρ‚Π°ΠΊΠΎΠΆ припущСння ΠΏΡ€ΠΎ Π½Π΅Π·Π°Π»Π΅ΠΆΠ½Ρ–ΡΡ‚ΡŒ Ρƒ сукупності Π²Ρ–Π΄ΠΏΠΎΠ²Ρ–Π΄Π½ΠΈΡ… Π²ΠΈΠΏΠ°Π΄ΠΊΠΎΠ²ΠΈΡ… Π²Π΅Π»ΠΈΡ‡ΠΈΠ½. Π—Π° Ρ€Π°Ρ…ΡƒΠ½ΠΎΠΊ Ρ†ΠΈΡ… Π΄ΠΎΠ΄Π°Ρ‚ΠΊΠΎΠ²ΠΈΡ… ΠΏΡ€ΠΈΠΏΡƒΡ‰Π΅Π½ΡŒ Ρ€Π΅Π·ΡƒΠ»ΡŒΡ‚Π°Ρ‚ Басса-Пайка Ρ” Π±Ρ–Π»ΡŒΡˆ Ρ‚ΠΎΡ‡Π½ΠΈΠΌ, Π°Π»Π΅ Ρ€Π΅Π·ΡƒΠ»ΡŒΡ‚Π°Ρ‚, ΠΎΡ‚Ρ€ΠΈΠΌΠ°Π½ΠΈΠΉ Ρƒ Ρ†Ρ–ΠΉ Ρ€ΠΎΠ±ΠΎΡ‚Ρ–, ΡΠΏΡ€Π°Π²Π΄ΠΆΡƒΡ”Ρ‚ΡŒΡΡ для Π±Ρ–Π»ΡŒΡˆ ΡˆΠΈΡ€ΠΎΠΊΠΎΠΊΠΎΠ³ΠΎ класу Π²ΠΈΠΏΠ°Π΄ΠΊΠΎΠ²ΠΈΡ… Π²Π΅Π»ΠΈΡ‡ΠΈΠ½ Ρ‚Π° сім'Ρ— A. Π’ Ρ€ΠΎΠ±ΠΎΡ‚Ρ– Ρ‚Π°ΠΊΠΎΠΆ ΠΏΠΎΠΊΠ°Π·Π°Π½ΠΎ, Ρ‰ΠΎ Π·Π°ΠΏΡ€ΠΎΠΏΠΎΠ½ΠΎΠ²Π°Π½ΠΈΠΉ ΠΏΡ–Π΄Ρ…Ρ–Π΄ Ρ” ΠΎΠΏΡ‚ΠΈΠΌΠ°Π»ΡŒΠ½ΠΈΠΌ для Ρ–Π½ΡˆΠΈΡ… Π½ΠΎΡ€ΠΌΡƒΠ²Π°Π½ΡŒ, які Π·Π°Π΄ΠΎΠ²ΠΎΠ»ΡŒΠ½ΡΡŽΡ‚ΡŒ ΡƒΠΌΠΎΠ²Ρƒ ΠœΠ°Ρ€Ρ‚Ρ–ΠΊΠ°ΠΉΠ½Π΅Π½Π°-ΠŸΠ΅Ρ‚Ρ€ΠΎΠ²Π°. Ми Π½Π°Π²ΠΎΠ΄ΠΈΠΌΠΎ Ρ‚Π°ΠΊΠΎΠΆ Π½ΠΈΠ·ΠΊΡƒ ΠΏΡ€ΠΈΠΊΠ»Π°Π΄Ρ–Π² Ρ‚Π° ΠΊΠΎΠ½Ρ‚Ρ€ΠΏΡ€ΠΈΠΊΠ»Π°Π΄Ρ–Π², які ΠΏΠΎΡΡΠ½ΡŽΡŽΡ‚ΡŒ ΡΡƒΡ‚ΡŒ ΡƒΠΌΠΎΠ²ΠΈ Басса-Пайка стосовно сім'Ρ— A. НавСдСно Π·Π²'язок ΠΎΡ‚Ρ€ΠΈΠΌΠ°Π½ΠΎΠ³ΠΎ Ρ€Π΅Π·ΡƒΠ»ΡŒΡ‚Π°Ρ‚Ρƒ Ρ‚Π° підсилСного Π·Π°ΠΊΠΎΠ½Ρƒ Π²Π΅Π»ΠΈΠΊΠΈΡ… чисСл для підпослідовностСй.

    Divergence Theorem in the L2-Version. Application to the Dirichlet Problem

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    Uniform strong law of large numbers

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    We prove the strong law of large numbers for random signed measures. The result is uniform over a family of subsets under mild assumptions
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