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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">dan</journal-id><journal-title-group><journal-title xml:lang="ru">Доклады Национальной академии наук Беларуси</journal-title><trans-title-group xml:lang="en"><trans-title>Doklady of the National Academy of Sciences of Belarus</trans-title></trans-title-group></journal-title-group><issn pub-type="ppub">1561-8323</issn><issn pub-type="epub">2524-2431</issn><publisher><publisher-name>The Republican Unitary Enterprise Publishing House "Belaruskaya Navuka"</publisher-name></publisher></journal-meta><article-meta><article-id custom-type="elpub" pub-id-type="custom">dan-199</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>ЭКСТРЕМАЛЬНЫЕ СВОЙСТВА АППРОКСИМАЦИЙ ЭРМИТА–ПАДЕ ЭКСПОНЕНЦИАЛЬНЫХ ФУНКЦИЙ</article-title><trans-title-group xml:lang="en"><trans-title>EXTREMAL PROPERTIES OF DIAGONAL HERMITE–PADE APPROXIMANTS OF EXPONENTIAL FUNCTIONS</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>АСТАФЬЕВА</surname><given-names>А. В.</given-names></name><name name-style="western" xml:lang="en"><surname>ASTAFYEVA</surname><given-names>A. 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>СТАРОВОЙТОВ</surname><given-names>А. П.</given-names></name><name name-style="western" xml:lang="en"><surname>STAROVOITOV</surname><given-names>A. P.</given-names></name></name-alternatives><email xlink:type="simple">svoitov@gsu.by</email><xref ref-type="aff" rid="aff-1"/></contrib></contrib-group><aff xml:lang="ru" id="aff-1"><institution>Гомельский государственный университет им. Ф. Скорины</institution><country>Belarus</country></aff><pub-date pub-type="collection"><year>2014</year></pub-date><pub-date pub-type="epub"><day>08</day><month>06</month><year>2016</year></pub-date><volume>58</volume><issue>2</issue><fpage>32</fpage><lpage>37</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; АСТАФЬЕВА А.В., СТАРОВОЙТОВ А.П., 2016</copyright-statement><copyright-year>2016</copyright-year><copyright-holder xml:lang="ru">АСТАФЬЕВА А.В., СТАРОВОЙТОВ А.П.</copyright-holder><copyright-holder xml:lang="en">ASTAFYEVA A.V., STAROVOITOV A.P.</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://doklady.belnauka.by/jour/article/view/199">https://doklady.belnauka.by/jour/article/view/199</self-uri><abstract><p>В работе изучаются экстремальные свойства диагональных аппроксимаций Эрмита–Паде I типа для системы экспонент {eλpz}kp=0с произвольными различными действительными показателями λ0, λ1, …, λk. Доказанные теоремы дополняют известные результаты П. Борвейна и Ф. Вилонского.</p></abstract><trans-abstract xml:lang="en"><p>The paper deals with extremal properties of diagonal Hermite-Pad’e approximants of type I for exponential system {eλpz}kp=0with arbitrary λ0, λ1, …, λk. Proved theorems complement known results of P. P. Borwein, F. Wielonsky.</p></trans-abstract></article-meta></front><back><ref-list><title>References</title><ref id="cit1"><label>1</label><citation-alternatives><mixed-citation xml:lang="ru">Hermite C. // Ann. Math. Pura. Appl. Ser. 2A 1883. Vol. 21. P. P. 289−308.</mixed-citation><mixed-citation xml:lang="en">Hermite C. // Ann. Math. Pura. Appl. Ser. 2A 1883. Vol. 21. P. P. 289−308.</mixed-citation></citation-alternatives></ref><ref id="cit2"><label>2</label><citation-alternatives><mixed-citation xml:lang="ru">Hermite C. // C. R. A kad. Sci. (Paris) 1873. Vol. 77. P. P. 18−293.</mixed-citation><mixed-citation xml:lang="en">Hermite C. // C. R. A kad. Sci. (Paris) 1873. Vol. 77. P. P. 18−293.</mixed-citation></citation-alternatives></ref><ref id="cit3"><label>3</label><citation-alternatives><mixed-citation xml:lang="ru">Mahler K. // Comp. Math. 1968. Vol. 19. P. P. 95−166.</mixed-citation><mixed-citation xml:lang="en">Mahler K. // Comp. Math. 1968. Vol. 19. P. P. 95−166.</mixed-citation></citation-alternatives></ref><ref id="cit4"><label>4</label><citation-alternatives><mixed-citation xml:lang="ru">Mahler K. // J. Reine Angew. Math. 1931. Vol. 166. P. P. 118−150.</mixed-citation><mixed-citation xml:lang="en">Mahler K. // J. Reine Angew. Math. 1931. Vol. 166. P. P. 118−150.</mixed-citation></citation-alternatives></ref><ref id="cit5"><label>5</label><citation-alternatives><mixed-citation xml:lang="ru">Aptekarev A. I., Stahl H. Progress in Approximation Theory. New York; Berlin, 1992. P. P. 127−167.</mixed-citation><mixed-citation xml:lang="en">Aptekarev A. I., Stahl H. Progress in Approximation Theory. New York; Berlin, 1992. P. P. 127−167.</mixed-citation></citation-alternatives></ref><ref id="cit6"><label>6</label><citation-alternatives><mixed-citation xml:lang="ru">Chudnovsky G. V. Lecture Notes in Math. New York; Berlin, 1982. Vol. 925. P. P. 299−322.</mixed-citation><mixed-citation xml:lang="en">Chudnovsky G. V. Lecture Notes in Math. New York; Berlin, 1982. Vol. 925. P. P. 299−322.</mixed-citation></citation-alternatives></ref><ref id="cit7"><label>7</label><citation-alternatives><mixed-citation xml:lang="ru">Borwein P. B. // Const. Approx. 1986. Vol. 62. P. P. 291−302.</mixed-citation><mixed-citation xml:lang="en">Borwein P. B. // Const. Approx. 1986. Vol. 62. P. P. 291−302.</mixed-citation></citation-alternatives></ref><ref id="cit8"><label>8</label><citation-alternatives><mixed-citation xml:lang="ru">Wielonsky F. // J. Approx. Theory. 1997. Vol. 90, N 2. P. P. 283−298.</mixed-citation><mixed-citation xml:lang="en">Wielonsky F. // J. Approx. Theory. 1997. Vol. 90, N 2. P. P. 283−298.</mixed-citation></citation-alternatives></ref><ref id="cit9"><label>9</label><citation-alternatives><mixed-citation xml:lang="ru">Trefethen L. N. // J. Approx. Theory. 1984. Vol. 40, N 4. P. P. 380−384.</mixed-citation><mixed-citation xml:lang="en">Trefethen L. N. // J. Approx. Theory. 1984. Vol. 40, N 4. P. P. 380−384.</mixed-citation></citation-alternatives></ref><ref id="cit10"><label>10</label><citation-alternatives><mixed-citation xml:lang="ru">Braess D. // J. Approx. Theory. 1984. Vol. 40, N 4. P. P. 375−379.</mixed-citation><mixed-citation xml:lang="en">Braess D. // J. Approx. Theory. 1984. Vol. 40, N 4. P. P. 375−379.</mixed-citation></citation-alternatives></ref><ref id="cit11"><label>11</label><citation-alternatives><mixed-citation xml:lang="ru">Старовойтов А. П. // Проблемы физики, математики и техники. 2013. № 1(14). C. 81−87.</mixed-citation><mixed-citation xml:lang="en">Старовойтов А. П. // Проблемы физики, математики и техники. 2013. № 1(14). C. 81−87.</mixed-citation></citation-alternatives></ref><ref id="cit12"><label>12</label><citation-alternatives><mixed-citation xml:lang="ru">Сидоров Ю. В., Федорюк М. В., Шабунин М. И. Лекции по теории функций комплексного переменного. М., 1989.</mixed-citation><mixed-citation xml:lang="en">Сидоров Ю. В., Федорюк М. В., Шабунин М. И. Лекции по теории функций комплексного переменного. М., 1989.</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>
