<?xml version="1.0"?>
<!DOCTYPE article
PUBLIC "-//NLM//DTD JATS (Z39.96) Journal Publishing DTD v1.4 20190208//EN"
       "JATS-journalpublishing1.dtd">
<article 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" article-type="research-article" dtd-version="1.4" xml:lang="en">
 <front>
  <journal-meta>
   <journal-id journal-id-type="publisher-id">Bulletin of Bryansk state technical university</journal-id>
   <journal-title-group>
    <journal-title xml:lang="en">Bulletin of Bryansk state technical university</journal-title>
    <trans-title-group xml:lang="ru">
     <trans-title>Вестник Брянского государственного технического университета</trans-title>
    </trans-title-group>
   </journal-title-group>
   <issn publication-format="print">1999-8775</issn>
  </journal-meta>
  <article-meta>
   <article-id pub-id-type="publisher-id">14222</article-id>
   <article-id pub-id-type="doi">10.12737/23016</article-id>
   <article-categories>
    <subj-group subj-group-type="toc-heading" xml:lang="ru">
     <subject>Машиностроение и транспорт</subject>
    </subj-group>
    <subj-group subj-group-type="toc-heading" xml:lang="en">
     <subject>Mechanical engineering and transport</subject>
    </subj-group>
    <subj-group>
     <subject>Машиностроение и транспорт</subject>
    </subj-group>
   </article-categories>
   <title-group>
    <article-title xml:lang="en">Periodic vibrations of nongomogeneous  string with clamped and free ends.</article-title>
    <trans-title-group xml:lang="ru">
     <trans-title>ПЕРИОДИЧЕСКИЕ КОЛЕБАНИЯ НЕОДНОРОДНОЙ СТРУНЫ  С ЗАКРЕПЛЕННЫМ И СВОБОДНЫМ КОНЦАМИ</trans-title>
    </trans-title-group>
   </title-group>
   <contrib-group content-type="authors">
    <contrib contrib-type="author">
     <name-alternatives>
      <name xml:lang="ru">
       <surname>Рудаков</surname>
       <given-names>Игорь Алексеевич</given-names>
      </name>
      <name xml:lang="en">
       <surname>Rudakov</surname>
       <given-names>Igor Алексеевич</given-names>
      </name>
     </name-alternatives>
     <email>rudakov_ia@mail.ru.</email>
    </contrib>
   </contrib-group>
   <pub-date publication-format="print" date-type="pub" iso-8601-date="2016-12-02T00:00:00+03:00">
    <day>02</day>
    <month>12</month>
    <year>2016</year>
   </pub-date>
   <pub-date publication-format="electronic" date-type="pub" iso-8601-date="2016-12-02T00:00:00+03:00">
    <day>02</day>
    <month>12</month>
    <year>2016</year>
   </pub-date>
   <volume>2015</volume>
   <issue>3</issue>
   <fpage>83</fpage>
   <lpage>92</lpage>
   <self-uri xlink:href="https://zh-szf.ru/en/nauka/article/14222/view">https://zh-szf.ru/en/nauka/article/14222/view</self-uri>
   <abstract xml:lang="ru">
    <p>Доказано существование  счетного числа периодических по времени решений   квазилинейного уравнения колебаний струны с однородными граничными условиями Дирихле и Неймана  на отрезке с непостоянными  коэффициентами в случае, когда нелинейное слагаемое имеет степенной рост.</p>
   </abstract>
   <trans-abstract xml:lang="en">
    <p>We prove the existence and regularity of  infinitely many time-periodic solutions of the quasili-near equation vibrations of nongomogeneous  string  for the case in which the left end of string is clamped and the right end is free. The nonlinear term has power-law growth.</p>
   </trans-abstract>
   <kwd-group xml:lang="ru">
    <kwd>волновое уравнение</kwd>
    <kwd>периодические решения</kwd>
    <kwd>задача Штурма-Лиувилля</kwd>
    <kwd>критические точки функционала.</kwd>
   </kwd-group>
   <kwd-group xml:lang="en">
    <kwd>wave equation</kwd>
    <kwd>periodic solutions</kwd>
    <kwd>Sturm-Lioville problem</kwd>
    <kwd>critical points of the functional.</kwd>
   </kwd-group>
  </article-meta>
 </front>
 <body>
  <p></p>
 </body>
 <back>
  <ref-list>
   <ref id="B1">
    <label>1.</label>
    <citation-alternatives>
     <mixed-citation xml:lang="ru">Barby, V. Periodic solutions to nonlinear one dimensional wave equation with  x - dependent coefficients/ V. Barby, N. H. Pavel // Trans. Amer. Math. Soc.-1997.-V. 349. - № 5.- P. 2035-2048.</mixed-citation>
     <mixed-citation xml:lang="en">Barby, V. Periodic solutions to nonlinear one dimensional wave equation with  x - dependent coefficients/ V. Barby, N. H. Pavel // Trans. Amer. Math. Soc.-1997.-V. 349. - № 5.- P. 2035-2048.</mixed-citation>
    </citation-alternatives>
   </ref>
   <ref id="B2">
    <label>2.</label>
    <citation-alternatives>
     <mixed-citation xml:lang="ru">Rabinowitz, P. Free vibration for a semilinear wave equation/ P. Rabinowitz//Comm. Pure Aple. Math.-1978.- V. 31.- № 1.- P. 31-68.</mixed-citation>
     <mixed-citation xml:lang="en">Rabinowitz, P. Free vibration for a semilinear wave equation/ P. Rabinowitz//Comm. Pure Aple. Math.-1978.- V. 31.- № 1.- P. 31-68.</mixed-citation>
    </citation-alternatives>
   </ref>
   <ref id="B3">
    <label>3.</label>
    <citation-alternatives>
     <mixed-citation xml:lang="ru">Bahri, A. Periodic solutions of a nonlinear wave equation/A. Bahri, H. Brezis// Proc. Roy. Soc. Edinburgh Sect. A. - 1980.- V. 85. - P. 3130-320.</mixed-citation>
     <mixed-citation xml:lang="en">Bahri, A. Periodic solutions of a nonlinear wave equation/A. Bahri, H. Brezis// Proc. Roy. Soc. Edinburgh Sect. A. - 1980.- V. 85. - P. 3130-320.</mixed-citation>
    </citation-alternatives>
   </ref>
   <ref id="B4">
    <label>4.</label>
    <citation-alternatives>
     <mixed-citation xml:lang="ru">Brezis, H. Forced vibration for a nonlinear wave equations/ H. Brezis, L. Nirenberg //Comm. Pure Aple. Math.-1978.- V. 31.  - № 1.- P. 1-30.</mixed-citation>
     <mixed-citation xml:lang="en">Brezis, H. Forced vibration for a nonlinear wave equations/ H. Brezis, L. Nirenberg //Comm. Pure Aple. Math.-1978.- V. 31.  - № 1.- P. 1-30.</mixed-citation>
    </citation-alternatives>
   </ref>
   <ref id="B5">
    <label>5.</label>
    <citation-alternatives>
     <mixed-citation xml:lang="ru">Плотников, П. И. Существование счетного множества периодических решений задачи о вынужденных колебаниях для слабо нелинейного волнового уравнения/П. И. Плотников// Математический cборник. -1988.-Т. 136(178).-  № 4(8). - С. 546-560.</mixed-citation>
     <mixed-citation xml:lang="en">Plotnikov, P. I. Existence of a denumerable set of periodic solutions for a task of forced vibration for poorly nonlinear wave equation / P. I. Plotnikov // Mathematical Proceedings.-1988. - Vol. 136(178).-No. 4(8). - pp. 546-560.</mixed-citation>
    </citation-alternatives>
   </ref>
   <ref id="B6">
    <label>6.</label>
    <citation-alternatives>
     <mixed-citation xml:lang="ru">Feireisl, E. On the existence of periodic solutions of a semilinear wave equation with a superlinear forcing term/ E. Feireisl //Chechosl. Math. J.- 1988.-V. 38.- № 1.- P.- 78-87.</mixed-citation>
     <mixed-citation xml:lang="en">Feireisl, E. On the existence of periodic solutions of a semilinear wave equation with a superlinear forcing term/ E. Feireisl //Chechosl. Math. J.- 1988.-V. 38.- № 1.- P.- 78-87.</mixed-citation>
    </citation-alternatives>
   </ref>
   <ref id="B7">
    <label>7.</label>
    <citation-alternatives>
     <mixed-citation xml:lang="ru">Рудаков, И.А. Нелинейные колебания струны/ И.А. Рудаков//Вестн. МГУ. Сер. 1, Матем., мех. - 1984.- № 2. - С. 9-13.</mixed-citation>
     <mixed-citation xml:lang="en">Rudakov, I.A. Nonlinear vibration of a string / I.A. Rudakov // Bulletin of MSU. Ser. 1, Math., Mech. - 1984. - No. 2. - pp. 9-13.</mixed-citation>
    </citation-alternatives>
   </ref>
   <ref id="B8">
    <label>8.</label>
    <citation-alternatives>
     <mixed-citation xml:lang="ru">Рудаков, И. А. Периодические  решения нелинейного волнового уравнения с непостоянными коэффи-циентами/ И. А. Рудаков //Математические  заметки. -2004. -Т. 76.- Вып. 3. -С. 427-438.</mixed-citation>
     <mixed-citation xml:lang="en">Rudakov, I. A. Periodic solutions of nonlinear wave equation with nonconstant coefficients / I. A. Rudakov // Mathematical notes.-2004. - Vol. 76. - Issue 3. - pp. 427-438.</mixed-citation>
    </citation-alternatives>
   </ref>
   <ref id="B9">
    <label>9.</label>
    <citation-alternatives>
     <mixed-citation xml:lang="ru">Shuguan,  J. Time periodic solutions to a nonlinear wave equation with  - dependet coefficients/ J. Shu-guan//Calc. Var. -2008.-V. 32. - P. 137-153.</mixed-citation>
     <mixed-citation xml:lang="en">Shuguan,  J. Time periodic solutions to a nonlinear wave equation with  - dependent coefficients/ J. Shu-guan//Calc. Var. -2008.-V. 32. - P. 137-153.</mixed-citation>
    </citation-alternatives>
   </ref>
   <ref id="B10">
    <label>10.</label>
    <citation-alternatives>
     <mixed-citation xml:lang="ru">Рудаков, И.А. Периодические решения квазилинейного волнового уравнения с переменными коэффи-циентами/ И.А. Рудаков //Математический сборник. -2007.-Т. 198.-  № 4(8). - С. 546-560.</mixed-citation>
     <mixed-citation xml:lang="en">Rudakov, I.A. Periodic solutions of the quasilinear wave equation with variable coefficients / I.A. Rudakov // Mathematical Proceedings.-2007. - Vol. 198. - No. 4(8). - pp. 546-560.</mixed-citation>
    </citation-alternatives>
   </ref>
   <ref id="B11">
    <label>11.</label>
    <citation-alternatives>
     <mixed-citation xml:lang="ru">Рудаков, И.А.  Периодические решения квазилинейного волнового уравнения с переменными коэффи-циентами / И.А. Рудаков, А.П. Лукавый //  Вестник Брянского государственного технического универ-ситета. - 2014. -  № 3. - С. 147-155.</mixed-citation>
     <mixed-citation xml:lang="en">Rudakov, I.A. Periodic solutions of the quasilinear wave equation with variable coefficients / I.A. Rudakov, A.P. Lukavy // Bulletin of Bryansk State Technical University. - 2014. - No. 3. - pp. 147-155.</mixed-citation>
    </citation-alternatives>
   </ref>
   <ref id="B12">
    <label>12.</label>
    <citation-alternatives>
     <mixed-citation xml:lang="ru">Рудаков, И.А. О периодических по времени решениях квазилинейного волнового уравнения/ И.А. Ру-даков // Труды  МИАН. -2010. - Т. 270. - С. 226-232.</mixed-citation>
     <mixed-citation xml:lang="en">Rudakov, I.A. On time-periodic solutions of a quasilinear wave equation/ I.A. Rudakov // Proceedings of MIAS.-2010. - Vol. 270. - pp. 226-232.</mixed-citation>
    </citation-alternatives>
   </ref>
   <ref id="B13">
    <label>13.</label>
    <citation-alternatives>
     <mixed-citation xml:lang="ru">Трикоми, Ф. Дифференциальные уравнения/ Ф.Трикоми. - М.: УРСС, 2003.-351 с.</mixed-citation>
     <mixed-citation xml:lang="en">Trikomi, T. Differential equations / F.Trikomi. - M.: URSS, 2003.-351 p.</mixed-citation>
    </citation-alternatives>
   </ref>
   <ref id="B14">
    <label>14.</label>
    <citation-alternatives>
     <mixed-citation xml:lang="ru">Feireisl, E. On the existence of periodic solutions of rectangle thin plate/ E. Feireisl //Chechosl. Math. J.- 1988.-V. 37.- № 1.- P.- 334-341.</mixed-citation>
     <mixed-citation xml:lang="en">Feireisl, E. On the existence of periodic solutions of rectangle thin plate/ E. Feireisl //Chechosl. Math. J.- 1988.-V. 37.- № 1.- P.- 334-341.</mixed-citation>
    </citation-alternatives>
   </ref>
   <ref id="B15">
    <label>15.</label>
    <citation-alternatives>
     <mixed-citation xml:lang="ru">Fadell, E.R. Borsuk-Ulam theorem for arbitrary   actions and application/E.R. Fadell, S. Y. Husseini, P.H. Rabinowitz//Trans. Amer. Math. Soc.-1982.-V. 274.- № 1.- P.- 345-360.</mixed-citation>
     <mixed-citation xml:lang="en">Fadell, E.R. Borsuk-Ulam theorem for arbitrary   actions and application/E.R. Fadell, S. Y. Husseini, P.H. Rabinowitz//Trans. Amer. Math. Soc.-1982.-V. 274.- № 1.- P.- 345-360.</mixed-citation>
    </citation-alternatives>
   </ref>
  </ref-list>
 </back>
</article>
