<?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">vestifm</journal-id><journal-title-group><journal-title xml:lang="ru">Известия Национальной академии наук Беларуси. Серия физико-математических наук</journal-title><trans-title-group xml:lang="en"><trans-title>Proceedings of the National Academy of Sciences of Belarus. Physics and Mathematics Series</trans-title></trans-title-group></journal-title-group><issn pub-type="ppub">1561-2430</issn><issn pub-type="epub">2524-2415</issn><publisher><publisher-name>The Republican Unitary Enterprise Publishing House "Belaruskaya Navuka"</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="doi">10.29235/1561-2430-2025-61-3-195-202</article-id><article-id custom-type="elpub" pub-id-type="custom">vestifm-849</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>МАТЕМАТИКА</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="en"><subject>MATHEMATICS</subject></subj-group></article-categories><title-group><article-title>О вычислении моментов решений одного класса линейных СДУ Скорохода на пространстве Пуассона</article-title><trans-title-group xml:lang="en"><trans-title>On calculation of moments of the solutions to one class of linear Skorohod SDE on Poisson space</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>Егоров</surname><given-names>А. Д.</given-names></name><name name-style="western" xml:lang="en"><surname>Egorov</surname><given-names>A. D.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Егоров Александр Дмитриевич – доктор физико-математических наук, главный научный сотрудник</p><p>ул. Сурганова, 11, 220072, Минск</p></bio><bio xml:lang="en"><p>Alexandr D. Egorov – Dr. Sc. (Physics and Mathematics), Chief Researcher</p><p>11, Surganov Str., 220072, Minsk</p></bio><email xlink:type="simple">egorov@im.bas-net.by</email><xref ref-type="aff" rid="aff-1"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>Институт математики Национальной академии наук Беларуси</institution></aff><aff xml:lang="en"><institution>Institute of Mathematics of the National Academy of Sciences of Belarus</institution></aff></aff-alternatives><pub-date pub-type="collection"><year>2025</year></pub-date><pub-date pub-type="epub"><day>14</day><month>10</month><year>2025</year></pub-date><volume>61</volume><issue>3</issue><fpage>195</fpage><lpage>202</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Егоров А.Д., 2025</copyright-statement><copyright-year>2025</copyright-year><copyright-holder xml:lang="ru">Егоров А.Д.</copyright-holder><copyright-holder xml:lang="en">Egorov A.D.</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://vestifm.belnauka.by/jour/article/view/849">https://vestifm.belnauka.by/jour/article/view/849</self-uri><abstract><p>Известное представление решения линейного стохастического дифференциального уравнения Скорохода на пространстве Пуассона со случайными коэффициентами и начальным условием содержит в качестве неизвестного параметра семейство преобразований вероятностного пространства ведущего случайного процесса, определяемого решением интегрального стохастического уравнения. В работе рассматриваются случаи, когда решение этого интегрального уравнения может быть найдено в явном виде. Получены явные решения в двух случаях в классе линейных уравнений Скорохода на пространстве Пуассона со случайными коэффициентами и начальным условием, линейно зависящими от времени первого скачка ведущего процесса. Оцениваются первые три момента решения исходных СДУ и приводится численный пример. Полученные формулы вычисления моментов решения СДУ Скорохода с ведущим процессом Пуассона могут быть использованы при построении приближенных формул для вычисления математических ожиданий нелинейных функционалов от решения, аналогичных рассмотренным ранее для уравнений Скорохода с ведущим винеровским процессом. </p></abstract><trans-abstract xml:lang="en"><p>The known representation of the solution of the linear stochastic differential equation of Skorohod on Poisson space with random coefficients and an initial condition contains as an unknown parameter a family of transformations of the probability space of the leading random process determined by the solution of the integral stochastic equation. In this paper, we consider cases when the solution of this integral equation can be found in explicit form. Explicit solutions are obtained in two cases in the class of linear Skorohod equations on Poisson space with random coefficients and an initial condition linearly dependent on the time of the first jump of the leading process. The first three moments of the solution of the original SDEs are estimated and a numerical example is given. The obtained formulas for calculating the moments of the solution of Skorohod SDE with the leading Poisson process can be used in constructing approximate formulas for calculating the mathematical expectations of nonlinear functionals of the solution, similar to those considered earlier for Skorohod equations with the leading Wiener process.</p></trans-abstract><kwd-group xml:lang="ru"><kwd>стохастические дифференциальные уравнения</kwd><kwd>пространство Пуассона</kwd><kwd>уравнения Скорохода</kwd><kwd>моменты решений</kwd><kwd>приближенные вычисления</kwd></kwd-group><kwd-group xml:lang="en"><kwd>stochastic differential equations</kwd><kwd>Skorohod equations</kwd><kwd>Poisson space</kwd><kwd>moments of solutions</kwd><kwd>approximate evaluation</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">Privault, N. Linear Skorohod stochastic differential equations on Poisson space / N. Privault // Stochastic Analysis and Related Topics V / eds.: Körezlioğlu H., Øksendal B., Üstünel A. S. Stochastic. – Boston: Birkhäuser, 1996 – P. 237–253. – (Progress in Probability; vol 38). https://doi.org/10.1007/978-1-4612-2450-1_12</mixed-citation><mixed-citation xml:lang="en">Privault N. Linear Skorohod stochastic differential equations on Poisson space. Körezlioğlu H., Øksendal B., Üstünel A. S. (eds). Stochastic Analysis and Related Topics V. Progress in Probability, vol. 38. Boston, Birkhäuser, 1996, pp. 237– 253. https://doi.org/10.1007/978-1-4612-2450-1_12</mixed-citation></citation-alternatives></ref><ref id="cit2"><label>2</label><citation-alternatives><mixed-citation xml:lang="ru">Privault, N. Hypothesis testing and Skorohod stochastic integration / N. Privault // Journal of Applied Probability. – 2000. – Vol. 37, № 2. – P. 560–574. https://doi.org/10.1239/jap/1014842559</mixed-citation><mixed-citation xml:lang="en">Privault N. Hypothesis testing and Skorohod stochastic integration. Journal of Applied Probability, 2000, vol. 37, no. 2, pp. 560–574. https://doi.org/10.1239/jap/1014842559</mixed-citation></citation-alternatives></ref><ref id="cit3"><label>3</label><citation-alternatives><mixed-citation xml:lang="ru">Privault, N. Chaotic and variational calculus in discrete and continuous time for the Poisson processes / N. Privault // Stochastics and Stochastics Reports. – 1994. – Vol. 51, № 1–2. – P. 83–109. https://doi.org/10.1080/17442509408833946</mixed-citation><mixed-citation xml:lang="en">Privault N. Chaotic and variational calculus in discrete and continuous time for the Poisson processes. Stochastics and Stochastics Reports, 1991, vol. 51, no. 1–2, pp. 83–109. https://doi.org/10.1080/17442509408833946</mixed-citation></citation-alternatives></ref><ref id="cit4"><label>4</label><citation-alternatives><mixed-citation xml:lang="ru">Егоров, А. Д. Приближенные формулы для вычисления математического ожидания функционалов от решения линейного уравнения Скорохода / А. Д. Егоров // Весці Нацыянальнай акадэміі навук Беларусі. Серыя фізіка-матэматычных навук. – 2021. – Т. 57, № 2. – С. 198–205. https://doi.org/10.29235/1561-2430-2021-57-2-198-205</mixed-citation><mixed-citation xml:lang="en">Egorov A. D. Approximate formulas for the evaluation of the mathematical expectation of functionals from the solution to the linear Skorohod equation. Vestsі Natsyyanalʼnai akademіі navuk Belarusі. Seryya fіzіka-matematychnykh navuk = Proceedings of the National Academy of Sciences of Belarus. Physics and Mathematics series, 2021, vol. 57, no. 2, pp. 198–205 (in Russian). https://doi.org/10.29235/1561-2430-2021-57-2-198-205</mixed-citation></citation-alternatives></ref><ref id="cit5"><label>5</label><citation-alternatives><mixed-citation xml:lang="ru">Egorov, A. D. On the calculation of functionals from the solution to linear SDE with first-order chaos in coefficients / A. D. Egorov // Computer Data Analysis and Modeling: Stochastic and Data Science: Proceedings of the XIII International Conference, Minsk, Sept. 6–10, 2022. – Minsk, 2022. – P. 26–30.</mixed-citation><mixed-citation xml:lang="en">Egorov A. D. On the calculation of functionals from the solution to linear SDE with first-order chaos in coefficients. Computer Data Analysis and Modeling: Stochastic and Data Science. Proceedings of the XIII International Conference, Minsk, Sept. 6–10, 2022. Minsk, 2022, pp. 26–30.</mixed-citation></citation-alternatives></ref><ref id="cit6"><label>6</label><citation-alternatives><mixed-citation xml:lang="ru">Егоров, А. Д. О вычислении функционалов от решения линейного СДУ Скорохода с хаосом первого порядка в коэффициентах / А. Д. Егоров // Весці Нацыянальнай акадэміі навук Беларусі. Серыя фізіка-матэматычных навук. – 2023. – Т. 59, № 3. – С. 201–212. https://doi.org/10.29235/1561-2430-2023-59-3-201-212</mixed-citation><mixed-citation xml:lang="en">Egorov A. D. On the calculation of functionals from the solution of the linear Skorohod SDE with first-order chaos in the coefficients. Vestsі Natsyyanalʼnai akademіі navuk Belarusі. Seryya fіzіka-matematychnykh navuk = Proceedings of the National Academy of Sciences of Belarus. Physics and Mathematics series, 2023, vol. 59, no. 3, pp. 201–212 (in Russian). https://doi.org/10.29235/1561-2430-2023-59-3-201-212</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>
