<?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">cheb</journal-id><journal-title-group><journal-title xml:lang="ru">Чебышевский сборник</journal-title><trans-title-group xml:lang="en"><trans-title>Chebyshevskii Sbornik</trans-title></trans-title-group></journal-title-group><issn pub-type="ppub">2226-8383</issn><publisher><publisher-name>Tula State Lev Tolstoy  Pedagogical University</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="doi">10.22405/2226-8383-2024-25-1-42-51</article-id><article-id custom-type="elpub" pub-id-type="custom">cheb-1676</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><subj-group subj-group-type="section-heading" xml:lang="en"><subject>Article</subject></subj-group></article-categories><title-group><article-title>О равномерных оценках осцилляторных интегралов с гладкой фазой</article-title><trans-title-group xml:lang="en"><trans-title>Uniform estimates for oscillatory integrals with smooth phase</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>Икромов</surname><given-names>Исроил Акрамович</given-names></name><name name-style="western" xml:lang="en"><surname>Ikromov</surname><given-names>Isroil Akramovich</given-names></name></name-alternatives><email xlink:type="simple">ikromov1@rambler.ru</email><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Сафаров</surname><given-names>Акбар Рахманович</given-names></name><name name-style="western" xml:lang="en"><surname>Safarov</surname><given-names>Akbar Rakhmanovich</given-names></name></name-alternatives><email xlink:type="simple">safarov-akbar@mail.ru</email><xref ref-type="aff" rid="aff-1"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>Институт математики им. В. И. Романовского Академии наук Республики Узбекистан (г. Ташкент, Узбекистан), Самаркандский государственный университет (г.Самарканд, Узбекистан).</institution><country>Узбекистан</country></aff><aff xml:lang="en"><institution>V. I. Romanovsky Institute of Mathematics of the Academy of Sciences of the Republic of Uzbekistan (Tashkent, Uzbekistan), Samarkand State University (Samarkand, Uzbekistan).</institution><country>Uzbekistan</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2024</year></pub-date><pub-date pub-type="epub"><day>24</day><month>04</month><year>2024</year></pub-date><volume>25</volume><issue>1</issue><fpage>42</fpage><lpage>51</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Икромов И.А., Сафаров А.Р., 2024</copyright-statement><copyright-year>2024</copyright-year><copyright-holder xml:lang="ru">Икромов И.А., Сафаров А.Р.</copyright-holder><copyright-holder xml:lang="en">Ikromov I.A., Safarov A.R.</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://www.chebsbornik.ru/jour/article/view/1676">https://www.chebsbornik.ru/jour/article/view/1676</self-uri><abstract><p>Мы рассмотрим задачу о равномерных оценках осцилляторных интегралов с гладкой фазовой функцией, имеющей особенность типа 𝐷_∞. Оценка является точной и является аналогом оценок результата В. Н. Карпушкина.</p></abstract><trans-abstract xml:lang="en"><p>We consider the problem on uniform estimates for an oscillatory integrals with the smooth phase functions having singularities 𝐷_∞. The estimate is sharp and analogy to estimates of the work of V.N.Karpushkin.</p></trans-abstract><kwd-group xml:lang="ru"><kwd>фаза</kwd><kwd>деформация</kwd><kwd>особенность.</kwd></kwd-group><kwd-group xml:lang="en"><kwd>phase</kwd><kwd>deformation</kwd><kwd>singularity.</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">Арнольд В.И., Варченко А.Н., Гусейн-заде С.М. Особенности дифференцируемых отображений. Классификация критических точек, каустик и вольновых фронтов // М.:Наука. 1982.</mixed-citation><mixed-citation xml:lang="en">Arnold, V.I. &amp; Gusein-Zade, S.M.&amp; Varchenko, A.N. 1985. “Singularities of Differentiable Maps”, Birkhauser, Boston Basel, Stuttgart.</mixed-citation></citation-alternatives></ref><ref id="cit2"><label>2</label><citation-alternatives><mixed-citation xml:lang="ru">Варченко А.Н. Многогранник Ньютона и оценки осциллирующих интегралов // Функц. анализ и его прил., Т.10, вып 5. 1976. С. 13-38.</mixed-citation><mixed-citation xml:lang="en">Varchenko, A.N. 1976. “Newton polyhedra and estimation of oscillating integrals”, Functional Analysis and Its Applications vol. 10, pp. 175—196.</mixed-citation></citation-alternatives></ref><ref id="cit3"><label>3</label><citation-alternatives><mixed-citation xml:lang="ru">Владимиров В.С. Уравнения математической физики // М.:Наука. 1981.</mixed-citation><mixed-citation xml:lang="en">Vladimirov, V.S. 1981. “Mathematic physics equation”, M.:Nauka. (Russian).</mixed-citation></citation-alternatives></ref><ref id="cit4"><label>4</label><citation-alternatives><mixed-citation xml:lang="ru">Van der Korput. K.G. Zur Methode der stationaren phase// Compositio Math. V.1. 1934. P. 15-38.</mixed-citation><mixed-citation xml:lang="en">Van der Korput, 1934. “K.G. Zur Methode der stationaren phase”, Compositio Math. V.1., pp. 15–38.</mixed-citation></citation-alternatives></ref><ref id="cit5"><label>5</label><citation-alternatives><mixed-citation xml:lang="ru">Duistermaat J. Oscillatory integrals Lagrange immersions and unifoldings of singularities // Comm. Pure.Appl.Math. - 1974. - V.27, № 2. - P.207-281.</mixed-citation><mixed-citation xml:lang="en">Duistermaat, J., 1974. “Oscillatory integrals Lagrange immersions and unifoldings of singularities”, Comm. Pure.Appl.Math., Vol. 27, № 2, pp. 207–281.</mixed-citation></citation-alternatives></ref><ref id="cit6"><label>6</label><citation-alternatives><mixed-citation xml:lang="ru">Ikromov I.A., Muller D. On adapted coordinate systems // Trans. Amer. Math. Soc., 363(2011), no. 6, P. 2821-2848.</mixed-citation><mixed-citation xml:lang="en">Ikromov, I.A. &amp; Muller, D. 2011. “On adapted coordinate systems”, Trans. Amer. Math. Soc., vol.363, no. 6, pp. 2821-2848.</mixed-citation></citation-alternatives></ref><ref id="cit7"><label>7</label><citation-alternatives><mixed-citation xml:lang="ru">В.Н.Карпушкин. Равномерные оценки осциллирующих интегралов с параболической или гиперболической фазой // Труды Семинара имени И.Г.Петровского. вып.9. 1983. С. 3-39.</mixed-citation><mixed-citation xml:lang="en">Karpushkin, V.N. 1983, “Uniform estimates for oscillatory integrals with parabolic or hyperbolic phase”, Proceedings of the I.G.Petrovsky Seminar. Vol.9. pp. 3-39.(Russian)</mixed-citation></citation-alternatives></ref><ref id="cit8"><label>8</label><citation-alternatives><mixed-citation xml:lang="ru">Sogge C.D., Fourier integrals in Classical Analysis // Cambridge university press, Cambridge, 1993. P.105.</mixed-citation><mixed-citation xml:lang="en">Sogge, C.D. 1993. “Fourier integrals in Classical Analysis”, Cambridge, Cambridge university press, P. 105.</mixed-citation></citation-alternatives></ref><ref id="cit9"><label>9</label><citation-alternatives><mixed-citation xml:lang="ru">Carbery A., Christ M., and Wright J. Multidimensional Van der Korput lemma and sublevel set estimates // Journal of AMS, V.12. 1999. P.981-1015.</mixed-citation><mixed-citation xml:lang="en">Carbery, A., Christ, M., and Wright, J., 1999. “ Multidimensional Van der Korput lemma and sublevel set estimates”, Journal of AMS, V.12. pp. 981–1015.</mixed-citation></citation-alternatives></ref><ref id="cit10"><label>10</label><citation-alternatives><mixed-citation xml:lang="ru">Ruzhansky M., Safarov A. R., Khasanov G. A. Uniform estimates for oscillatory integrals with homogeneous polynomial phases of degree 4 // Analysis and Mathematical Physics, 12(130), (2022).</mixed-citation><mixed-citation xml:lang="en">Ruzhansky, M., Safarov, A. R., Khasanov, G. A., 2022. “Uniform estimates for oscillatory integrals with homogeneous polynomial phases of degree 4”, Analysis and Mathematical Physics, 12(130).</mixed-citation></citation-alternatives></ref><ref id="cit11"><label>11</label><citation-alternatives><mixed-citation xml:lang="ru">Сафаров А. Инвариантные оценки двумерных осцилляторных интегралов // Математические заметки. Т.104, вып 2. 2018. С. 289-300.</mixed-citation><mixed-citation xml:lang="en">Safarov, A., 2018. “Invariant estimates for double oscillatory integrals”, Mathematical Notes, 104:2, pp. 293—302.</mixed-citation></citation-alternatives></ref><ref id="cit12"><label>12</label><citation-alternatives><mixed-citation xml:lang="ru">Safarov A. On the 𝐿𝑝-bound for trigonometric integrals // Analysis mathematica 45, 2019,153-176 p.</mixed-citation><mixed-citation xml:lang="en">Safarov, A., 2019. On the 𝐿𝑝-bound for trigonometric integrals. Analysis mathematica, 45, pp. 153–176.</mixed-citation></citation-alternatives></ref><ref id="cit13"><label>13</label><citation-alternatives><mixed-citation xml:lang="ru">Safarov A. On invariant estimates for oscillatory integrals with polynomial phase // J. Sib. Fed. Univ. Math. Phys. 9 (2016), P.102–107.</mixed-citation><mixed-citation xml:lang="en">Safarov, A., 2016. “On invariant estimates for oscillatory integrals with polynomial phase”, J. Sib. Fed. Univ. Math. Phys. 9 (2016), pp. 102–107.</mixed-citation></citation-alternatives></ref><ref id="cit14"><label>14</label><citation-alternatives><mixed-citation xml:lang="ru">Safarov A. On a problem of restriction of Fourier transform on a hypersurface // Russian Mathematics, 63 (4), 2019, P.57-63.</mixed-citation><mixed-citation xml:lang="en">Safarov, A., 2019. “On a problem of restriction of Fourier transform on a hypersurface”, Russian Mathematics, 63 (4), pp. 57–63.</mixed-citation></citation-alternatives></ref><ref id="cit15"><label>15</label><citation-alternatives><mixed-citation xml:lang="ru">Safarov A. R. Estimates for Mittag-–Leffler Functions with Smooth Phase Depending on Two Variables // J. Sib. Fed. Univ. Math. Phys., 15(4) (2022), P.459-–466.</mixed-citation><mixed-citation xml:lang="en">Safarov, A. R., 2022. “Estimates for Mittag-–Leffler Functions with Smooth Phase Depending on Two Variables, J. Sib. Fed. Univ. Math. Phys., 15(4), pp. 459-–466.</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>
