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<article article-type="research-article" dtd-version="1.3" xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xml:lang="ru"><front><journal-meta><journal-id journal-id-type="publisher-id">izvuzmath</journal-id><journal-title-group><journal-title xml:lang="ru">Известия высших учебных заведений. Математика</journal-title><trans-title-group xml:lang="en"><trans-title>Izvestiya Vysshikh Uchebnykh Zavedenii. Matematika</trans-title></trans-title-group></journal-title-group><issn pub-type="ppub">0021-3446</issn><issn pub-type="epub">2076-4626</issn><publisher><publisher-name>Казанский (Приволжский) федеральный университет</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="doi">10.26907/0021-3446-2025-11-48-69</article-id><article-id custom-type="elpub" pub-id-type="custom">izvuzmath-237</article-id><article-categories><subj-group subj-group-type="heading"><subject>Research Article</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="ru"><subject>Статьи</subject></subj-group></article-categories><title-group><article-title>Оценка остаточного члена в разложении устойчивого закона при крайних значениях параметра асимметрии</article-title><trans-title-group xml:lang="en"><trans-title>Estimation of the remainder term in the expansion of the stable law for extreme values of the asymmetry parameter</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Саенко</surname><given-names>В. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Saenko</surname><given-names>V. V.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Саенко Вячеслав Владимирович</p><p>ул. Л. Толстого, д. 42, г. Ульяновск, 432017</p></bio><bio xml:lang="en"><p>Viacheslav V. Saenko</p><p>42 L. Tolstoy str., Ulyanovsk, 432017 </p></bio><email xlink:type="simple">vvsaenko@inbox.ru</email><xref ref-type="aff" rid="aff-1"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>Ульяновский государственный университет</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Ulyanovsk State University</institution><country>Russian Federation</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2025</year></pub-date><pub-date pub-type="epub"><day>25</day><month>11</month><year>2025</year></pub-date><volume>0</volume><issue>11</issue><fpage>48</fpage><lpage>69</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Саенко В.В., 2025</copyright-statement><copyright-year>2025</copyright-year><copyright-holder xml:lang="ru">Саенко В.В.</copyright-holder><copyright-holder xml:lang="en">Saenko V.V.</copyright-holder><license xml:lang="ru" license-type="creative-commons-attribution" xlink:href="https://creativecommons.org/licenses/by/4.0/" xlink:type="simple"><license-p>Данная работа распространяется под лицензией Creative Commons Attribution 4.0.</license-p></license><license xml:lang="en" license-type="creative-commons-attribution" xlink:href="https://creativecommons.org/licenses/by/4.0/" xlink:type="simple"><license-p>This work is licensed under a Creative Commons Attribution 4.0 License.</license-p></license></permissions><self-uri xlink:href="https://izvuzmath.elpub.ru/jour/article/view/237">https://izvuzmath.elpub.ru/jour/article/view/237</self-uri><abstract><p>В работе исследуется разложение строго устойчивого закона при x ^ 0 и x ^ ж в случае крайних значений параметра асимметрии. Получены асимптотические разложения плотности вероятности и функции распределения, а также оценки остаточных членов этих разложений. На основе оценок остаточных членов представлен критерий, позволяющий опре­делить область координат, внутри которой возможно использование этих асимптотических разложений. Представленные расчеты подтверждают справедливость полученных выраже­ний.</p></abstract><trans-abstract xml:lang="en"><p>The paper examines the expansion of the strictly stable law for x ^ 0 and x ^ x in the case of extreme values of the asymmetry parameter. Asymptotic expansions of the probability density and distribution functions are obtained, as well as estimates of the residual terms of these expansions. Based on the obtained estimates of the residual terms, a criterion is presented that allows determining the coordinate region within which it is possible to use these asymptotic expansions. The presented calculations confirm the validity of the obtained expressions.</p></trans-abstract><kwd-group xml:lang="ru"><kwd>устойчивый закон</kwd><kwd>разложение устойчивого закона</kwd><kwd>плотность вероятности</kwd><kwd>функция распределения</kwd><kwd>метод Лапласа</kwd><kwd>асимптотическое разложение</kwd><kwd>полином Белла</kwd></kwd-group><kwd-group xml:lang="en"><kwd>stable law</kwd><kwd>expansion of stable law</kwd><kwd>probability density</kwd><kwd>distribution function</kwd><kwd>Laplace method</kwd><kwd>asymptotic expansion</kwd><kwd>Bell polynomial</kwd></kwd-group></article-meta></front><back><ref-list><title>References</title><ref id="cit1"><label>1</label><citation-alternatives><mixed-citation xml:lang="ru">Pollard H. The representation of mathrm{e}mathrm{x}mathrm{p}( - x lambda ) as a Laplace integral, Bull. Amer. Math. Soc. 52 (10), 908–910 (1946), DOI: 10.1090/S0002-9904-1946-08672-3.</mixed-citation><mixed-citation xml:lang="en">Pollard H. The representation of mathrm{e}mathrm{x}mathrm{p}( - x lambda ) as a Laplace integral, Bull. Amer. Math. Soc. 52 (10), 908–910 (1946), DOI: 10.1090/S0002-9904-1946-08672-3.</mixed-citation></citation-alternatives></ref><ref id="cit2"><label>2</label><citation-alternatives><mixed-citation xml:lang="ru">Bergstr¨om H. On some expansions of stable distribution functions, Arkiv Matem. 2 (4), 375–378 (1952), DOI: doi.org/10.1007/BF02591503.</mixed-citation><mixed-citation xml:lang="en">Bergstr¨om H. On some expansions of stable distribution functions, Arkiv Matem. 2 (4), 375–378 (1952), DOI: doi.org/10.1007/BF02591503.</mixed-citation></citation-alternatives></ref><ref id="cit3"><label>3</label><citation-alternatives><mixed-citation xml:lang="ru">Schneider W. R. Stable distributions: Fox function representation and generalization, Stoch. Proc. Class. Quant. Syst. 262, 497–511, ed. by Albeverio S., Casati G., Merlini D. (Springer Berlin Heidelberg, Berlin, 1986), DOI: 10.1007/3540171665_92.</mixed-citation><mixed-citation xml:lang="en">Schneider W. R. Stable distributions: Fox function representation and generalization, Stoch. Proc. Class. Quant. Syst. 262, 497–511, ed. by Albeverio S., Casati G., Merlini D. (Springer Berlin Heidelberg, Berlin, 1986), DOI: 10.1007/3540171665_92.</mixed-citation></citation-alternatives></ref><ref id="cit4"><label>4</label><citation-alternatives><mixed-citation xml:lang="ru">Feller W. An Introduction to Probability Theory and Its Applications, V. 2 (John Weley &amp; Sons inc, New York, 1971).</mixed-citation><mixed-citation xml:lang="en">Feller W. An Introduction to Probability Theory and Its Applications, V. 2 (John Weley &amp; Sons inc, New York, 1971).</mixed-citation></citation-alternatives></ref><ref id="cit5"><label>5</label><citation-alternatives><mixed-citation xml:lang="ru">Золотарев В.М. Одномерные устойчивые распределения (Наука, М., 1983).</mixed-citation><mixed-citation xml:lang="en">Золотарев В.М. Одномерные устойчивые распределения (Наука, М., 1983).</mixed-citation></citation-alternatives></ref><ref id="cit6"><label>6</label><citation-alternatives><mixed-citation xml:lang="ru">Uchaikin V.V. Zolotarev V.M. Chance and stability. Stable Distributions and their Applications (VSP, Utrecht, 1999).</mixed-citation><mixed-citation xml:lang="en">Uchaikin V.V. Zolotarev V.M. Chance and stability. Stable Distributions and their Applications (VSP, Utrecht, 1999).</mixed-citation></citation-alternatives></ref><ref id="cit7"><label>7</label><citation-alternatives><mixed-citation xml:lang="ru">Ament S., O’Neil M. Accurate and efficient numerical calculation of stable densities via optimized quadrature and asymptotics, Stat. Comput. 28 (1), 171–185 (2018), DOI: 10.1007/s11222-017-9725-y.</mixed-citation><mixed-citation xml:lang="en">Ament S., O’Neil M. Accurate and efficient numerical calculation of stable densities via optimized quadrature and asymptotics, Stat. Comput. 28 (1), 171–185 (2018), DOI: 10.1007/s11222-017-9725-y.</mixed-citation></citation-alternatives></ref><ref id="cit8"><label>8</label><citation-alternatives><mixed-citation xml:lang="ru">Saenko V.V. The calculation of the probability density and distribution function of a strictly stable law in the vicinity of zero, Mathematics 10 (20), article 3861 (2022), DOI: 10.3390/math10203861.</mixed-citation><mixed-citation xml:lang="en">Saenko V.V. The calculation of the probability density and distribution function of a strictly stable law in the vicinity of zero, Mathematics 10 (20), article 3861 (2022), DOI: 10.3390/math10203861.</mixed-citation></citation-alternatives></ref><ref id="cit9"><label>9</label><citation-alternatives><mixed-citation xml:lang="ru">Saenko V.V. The calculation of the density and distribution functions of strictly stable laws, Mathematics 8 (5), article 775 (2020), DOI: 10.3390/math8050775.</mixed-citation><mixed-citation xml:lang="en">Saenko V.V. The calculation of the density and distribution functions of strictly stable laws, Mathematics 8 (5), article 775 (2020), DOI: 10.3390/math8050775.</mixed-citation></citation-alternatives></ref><ref id="cit10"><label>10</label><citation-alternatives><mixed-citation xml:lang="ru">Евграфов М.А. Асимптотические оценки и целые функции (Гостехиздат, М., 1957).</mixed-citation><mixed-citation xml:lang="en">Евграфов М.А. Асимптотические оценки и целые функции (Гостехиздат, М., 1957).</mixed-citation></citation-alternatives></ref><ref id="cit11"><label>11</label><citation-alternatives><mixed-citation xml:lang="ru">Федорюк М.В. Асимптотика: Интегралы и ряды (Наука, М., 1987).</mixed-citation><mixed-citation xml:lang="en">Федорюк М.В. Асимптотика: Интегралы и ряды (Наука, М., 1987).</mixed-citation></citation-alternatives></ref><ref id="cit12"><label>12</label><citation-alternatives><mixed-citation xml:lang="ru">Saenko V.V. Integral Representation of the Fractional Stable Density, J. Math. Sci. 248 (1), 51–66 (2020), DOI: 10.1007/s10958-020-04855-5.</mixed-citation><mixed-citation xml:lang="en">Saenko V.V. Integral Representation of the Fractional Stable Density, J. Math. Sci. 248 (1), 51–66 (2020), DOI: 10.1007/s10958-020-04855-5.</mixed-citation></citation-alternatives></ref><ref id="cit13"><label>13</label><citation-alternatives><mixed-citation xml:lang="ru">Градштейн И.С., Рыжик И.М. Таблицы интегралов, сумм, рядов и произведений (Физматгиз, М., 1963).</mixed-citation><mixed-citation xml:lang="en">Градштейн И.С., Рыжик И.М. Таблицы интегралов, сумм, рядов и произведений (Физматгиз, М., 1963).</mixed-citation></citation-alternatives></ref><ref id="cit14"><label>14</label><citation-alternatives><mixed-citation xml:lang="ru">Riordan J. An Intoduction to Combinatorial Analysis (John Wiley &amp; Sons, Inc., New York, 1958).</mixed-citation><mixed-citation xml:lang="en">Riordan J. An Intoduction to Combinatorial Analysis (John Wiley &amp; Sons, Inc., New York, 1958).</mixed-citation></citation-alternatives></ref><ref id="cit15"><label>15</label><citation-alternatives><mixed-citation xml:lang="ru">Comtet L. Advanced Combinatorics. The Art of Finite and Infinite Expansions (D. Reidel Publ. Company, 1974).</mixed-citation><mixed-citation xml:lang="en">Comtet L. Advanced Combinatorics. The Art of Finite and Infinite Expansions (D. Reidel Publ. Company, 1974).</mixed-citation></citation-alternatives></ref></ref-list><fn-group><fn fn-type="conflict"><p>The authors declare that there are no conflicts of interest present.</p></fn></fn-group></back></article>
