<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE article PUBLIC "-//NLM//DTD JATS (Z39.96) Journal Publishing DTD v1.3 20210610//EN" "JATS-journalpublishing1-3.dtd">
<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">npe</journal-id><journal-title-group><journal-title xml:lang="ru">Ядерная физика и инжиниринг</journal-title><trans-title-group xml:lang="en"><trans-title>Nuclear Physics and Engineering</trans-title></trans-title-group></journal-title-group><issn pub-type="ppub">2079-5629</issn><issn pub-type="epub">2079-5637</issn><publisher><publisher-name>МИФИ</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="doi">10.56304/S207956292601001X</article-id><article-id custom-type="edn" pub-id-type="custom">DQPGZN</article-id><article-id custom-type="elpub" pub-id-type="custom">npe-658</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>Математическое моделирование в ядерных технологиях</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="en"><subject>Mathematical Modeling in Nuclear Technologies</subject></subj-group></article-categories><title-group><article-title>АППРОКСИМАЦИЯ ПЕРКУСА–ЙЕВИКА ДЛЯ ПРЯМОЙ КОРРЕЛЯЦИОННОЙ ФУНКЦИИ ГРАНИЧНЫХ СЛОЕВ ЖИДКОСТЕЙ</article-title><trans-title-group xml:lang="en"><trans-title>PERCUS–YEVICK APPROXIMATION FOR DIRECT CORRELATION FUNCTION FOR BOUNDARY LAYERS OF LIQUID</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>Аграфонов</surname><given-names>Ю. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Agrafonov</surname><given-names>Yu. V.</given-names></name></name-alternatives><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Петрушин</surname><given-names>И. С.</given-names></name><name name-style="western" xml:lang="en"><surname>Petrushin</surname><given-names>I. S.</given-names></name></name-alternatives><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Халаимов</surname><given-names>Д. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Khalaimov</surname><given-names>D. V.</given-names></name></name-alternatives><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Безлер</surname><given-names>И. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Bezler</surname><given-names>I. V.</given-names></name></name-alternatives><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Леонтьев</surname><given-names>Р. Ю.</given-names></name><name name-style="western" xml:lang="en"><surname>Leontyev</surname><given-names>R. Yu.</given-names></name></name-alternatives><xref ref-type="aff" rid="aff-1"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>Иркутский государственный университет</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Irkutsk State University</institution><country>Russian Federation</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2026</year></pub-date><pub-date pub-type="epub"><day>11</day><month>05</month><year>2026</year></pub-date><volume>17</volume><issue>3</issue><fpage>385</fpage><lpage>392</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Аграфонов Ю.В., Петрушин И.С., Халаимов Д.В., Безлер И.В., Леонтьев Р.Ю., 2026</copyright-statement><copyright-year>2026</copyright-year><copyright-holder xml:lang="ru">Аграфонов Ю.В., Петрушин И.С., Халаимов Д.В., Безлер И.В., Леонтьев Р.Ю.</copyright-holder><copyright-holder xml:lang="en">Agrafonov Y.V., Petrushin I.S., Khalaimov D.V., Bezler I.V., Leontyev R.Y.</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://npe.elpub.ru/jour/article/view/658">https://npe.elpub.ru/jour/article/view/658</self-uri><abstract><p>Рассматриваются интегральные уравнения статистической физики для одночастичной и двухчастичной функций распределения, ядра которых представлены бесконечными рядами неприводимых диаграмм. Разработан алгоритм вычисления первой неприводимой диаграммы, уточняющей уравнение Мартынова–Саркисова для молекулярной системы твердых сфер. Показано, что аппроксимацию Перкуса–Йевика прямой корреляционной функции пространственно-однородных жидкостей можно применять для прямой корреляционной функции граничных слоев жидкостей.</p></abstract><trans-abstract xml:lang="en"><p>We consider integral equations of statistical physics for one-particle and two-particle distribution functions whose kernels are represented by infinite series of irreducible diagrams. An algorithm for calculating the first irreducible diagram, which refines the Martynov–Sarkisov equation for a molecular system of solid spheres, is developed. It is shown that the Percus–Yevick approximation of the direct correlation function of spatially homogeneous liquids can be applied to the direct correlation function of boundary layers of liquids.</p></trans-abstract><kwd-group xml:lang="ru"><kwd>локальная плотность жидкости</kwd><kwd>частичные функции распределения</kwd><kwd>синглетные уравнения</kwd><kwd>уравнение Фредгольма второго рода</kwd><kwd>уравнение Вольтерра первого рода</kwd></kwd-group><kwd-group xml:lang="en"><kwd>local fluid density</kwd><kwd>partial distribution functions</kwd><kwd>singlet equations</kwd><kwd>Fredholm equation of the second kind</kwd><kwd>Volterra equation of the first kind</kwd></kwd-group><funding-group><funding-statement xml:lang="ru">Авторы признательны участникам Семинаров в ИХФЭ РАН и кафедры статистической физики СПбГУ за полезные обсуждения и критические замечания.</funding-statement></funding-group></article-meta></front><back><ref-list><title>References</title><ref id="cit1"><label>1</label><citation-alternatives><mixed-citation xml:lang="ru">Franz S., Mezard M., Parisi G., Peliti L. // J. of Stat. Physics. 1999. V. 97 (3–4). P. 459–488.</mixed-citation><mixed-citation xml:lang="en">Franz S., Mezard M., Parisi G., Peliti L. // J. of Stat. Physics. 1999. V. 97 (3–4). P. 459–488.</mixed-citation></citation-alternatives></ref><ref id="cit2"><label>2</label><citation-alternatives><mixed-citation xml:lang="ru">Berthier L., Witten T.A. // Phys. Rev. E. 2009. V. 80 (2). 021502.</mixed-citation><mixed-citation xml:lang="en">Berthier L., Witten T.A. // Phys. Rev. E. 2009. V. 80 (2). 021502.</mixed-citation></citation-alternatives></ref><ref id="cit3"><label>3</label><citation-alternatives><mixed-citation xml:lang="ru">Bomont J.M., Pastore G. // Mol. Physics. 2015. V. 113 (17– 18). P. 2770–2775.</mixed-citation><mixed-citation xml:lang="en">Bomont J.M., Pastore G. // Mol. Physics. 2015. V. 113 (17– 18). P. 2770–2775.</mixed-citation></citation-alternatives></ref><ref id="cit4"><label>4</label><citation-alternatives><mixed-citation xml:lang="ru">Bomont J.M., Pastore G., Hansen J.P. // J. Chem. Phys. 2017. V. 146 (11). P. 114504.</mixed-citation><mixed-citation xml:lang="en">Bomont J.M., Pastore G., Hansen J.P. // J. Chem. Phys. 2017. V. 146 (11). P. 114504.</mixed-citation></citation-alternatives></ref><ref id="cit5"><label>5</label><citation-alternatives><mixed-citation xml:lang="ru">Bomont J.M., Hansen J. P., Pastore G. // J. Chem. Phys. 2019. V. 150 (15). P. 154504.</mixed-citation><mixed-citation xml:lang="en">Bomont J.M., Hansen J. P., Pastore G. // J. Chem. Phys. 2019. V. 150 (15). P. 154504.</mixed-citation></citation-alternatives></ref><ref id="cit6"><label>6</label><citation-alternatives><mixed-citation xml:lang="ru">Parisi G., Slanina F. // Phys. Rev. E. 2000. V. 62 (5). P. 6554.</mixed-citation><mixed-citation xml:lang="en">Parisi G., Slanina F. // Phys. Rev. E. 2000. V. 62 (5). P. 6554.</mixed-citation></citation-alternatives></ref><ref id="cit7"><label>7</label><citation-alternatives><mixed-citation xml:lang="ru">Parisi G., Zamponi F. // J. Chem. Phys. 2005. V. 123 (14). P. 144501.</mixed-citation><mixed-citation xml:lang="en">Parisi G., Zamponi F. // J. Chem. Phys. 2005. V. 123 (14). P. 144501.</mixed-citation></citation-alternatives></ref><ref id="cit8"><label>8</label><citation-alternatives><mixed-citation xml:lang="ru">Parisi G., Urbani P., Zamponi F. Theory of Simple Glasses: Exact Solutions in Infinite Dimensions. 2020. Cambridge: Cambridge Univ. Press.</mixed-citation><mixed-citation xml:lang="en">Parisi G., Urbani P., Zamponi F. Theory of Simple Glasses: Exact Solutions in Infinite Dimensions. 2020. Cambridge: Cambridge Univ. Press.</mixed-citation></citation-alternatives></ref><ref id="cit9"><label>9</label><citation-alternatives><mixed-citation xml:lang="ru">Martynov G.A. Fundamental Theory of Liquids. Method of Distribution Functions. 1992. Bristol: Adam Hilger.</mixed-citation><mixed-citation xml:lang="en">Martynov G.A. Fundamental Theory of Liquids. Method of Distribution Functions. 1992. Bristol: Adam Hilger.</mixed-citation></citation-alternatives></ref><ref id="cit10"><label>10</label><citation-alternatives><mixed-citation xml:lang="ru">Vompe A.G., Martynov G.A. // J. Chem. Physics. 1997. V. 106 (14). P. 6095–6101.</mixed-citation><mixed-citation xml:lang="en">Vompe A.G., Martynov G.A. // J. Chem. Physics. 1997. V. 106 (14). P. 6095–6101.</mixed-citation></citation-alternatives></ref><ref id="cit11"><label>11</label><citation-alternatives><mixed-citation xml:lang="ru">Rogers F.J., Young D.A. // Phys. Rev. A. 1984. V. 30 (2). P. 999–1007.</mixed-citation><mixed-citation xml:lang="en">Rogers F.J., Young D.A. // Phys. Rev. A. 1984. V. 30 (2). P. 999–1007.</mixed-citation></citation-alternatives></ref><ref id="cit12"><label>12</label><citation-alternatives><mixed-citation xml:lang="ru">Agrafonov Yu.V., Petrushin I.S. // Bull. Rus. Acad. Sci.: Phys. 2024. V. 88 (7). P. 1017–1021.</mixed-citation><mixed-citation xml:lang="en">Agrafonov Yu.V., Petrushin I.S. // Bull. Rus. Acad. Sci.: Phys. 2024. V. 88 (7). P. 1017–1021.</mixed-citation></citation-alternatives></ref><ref id="cit13"><label>13</label><citation-alternatives><mixed-citation xml:lang="ru">Tikhonov D.A., Kiselyov O.E., Martynov G.A., Sarkisov G.N. // J. Mol. Liq. 1999. V. 82 (1–2). P. 3.</mixed-citation><mixed-citation xml:lang="en">Tikhonov D.A., Kiselyov O.E., Martynov G.A., Sarkisov G.N. // J. Mol. Liq. 1999. V. 82 (1–2). P. 3.</mixed-citation></citation-alternatives></ref><ref id="cit14"><label>14</label><citation-alternatives><mixed-citation xml:lang="ru">Wolynes P.G., Lubchenko V. Structural Glasses and Supercooled Liquids: Theory, Experiment, and Applications. 2012. New York: Wiley.</mixed-citation><mixed-citation xml:lang="en">Wolynes P.G., Lubchenko V. Structural Glasses and Supercooled Liquids: Theory, Experiment, and Applications. 2012. New York: Wiley.</mixed-citation></citation-alternatives></ref><ref id="cit15"><label>15</label><citation-alternatives><mixed-citation xml:lang="ru">Paganini I.E., Davidchack R.L., Laird B.B., Urrutia I. // J. Chem. Physics. 2018. V. 149 (1). P. 014704.</mixed-citation><mixed-citation xml:lang="en">Paganini I.E., Davidchack R.L., Laird B.B., Urrutia I. // J. Chem. Physics. 2018. V. 149 (1). P. 014704.</mixed-citation></citation-alternatives></ref><ref id="cit16"><label>16</label><citation-alternatives><mixed-citation xml:lang="ru">Agrafonov Y., Petrushin I. // J. Phys: Conf. Ser. 2021. V. 1847. P. 012035</mixed-citation><mixed-citation xml:lang="en">Agrafonov Y., Petrushin I. // J. Phys: Conf. Ser. 2021. V. 1847. P. 012035</mixed-citation></citation-alternatives></ref><ref id="cit17"><label>17</label><citation-alternatives><mixed-citation xml:lang="ru">Agrafonov Yu. V., Petrushin I.S. // J. Phys.: Conf. Ser. 2020. V. 1686. P. 012039</mixed-citation><mixed-citation xml:lang="en">Agrafonov Yu. V., Petrushin I.S. // J. Phys.: Conf. Ser. 2020. V. 1686. P. 012039</mixed-citation></citation-alternatives></ref><ref id="cit18"><label>18</label><citation-alternatives><mixed-citation xml:lang="ru">Аграфонов Ю.В., Петрушин И.С., Безлер И.В., Халаимов Д.В. // Ядерн. физ. инжинир. 2024. Т. 15 (1). С. 43–47 [Agrafonov Yu.V., Petrushin I.S., Bezler I.V., and Khalaimov D.V. // Phys. At. Nuclei. 2023. V. 86 (9). P. 2064–2067].</mixed-citation><mixed-citation xml:lang="en">Аграфонов Ю.В., Петрушин И.С., Безлер И.В., Халаимов Д.В. // Ядерн. физ. инжинир. 2024. Т. 15 (1). С. 43–47 [Agrafonov Yu.V., Petrushin I.S., Bezler I.V., and Khalaimov D.V. // Phys. At. Nuclei. 2023. V. 86 (9). P. 2064–2067].</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>
