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  <front>
    <journal-meta>
      <journal-id journal-id-type="issn">2411-3336</journal-id>
      <journal-id journal-id-type="eissn">2541-9404</journal-id>
      <journal-title-group>
        <journal-title xml:lang="ru">Записки Горного института</journal-title>
        <journal-title xml:lang="en">Journal of Mining Institute</journal-title>
      </journal-title-group>
      <publisher>
        <publisher-name xml:lang="ru">Санкт-Петербургский горный университет императрицы Екатерины ΙΙ</publisher-name>
        <publisher-name xml:lang="en">Empress Catherine II Saint Petersburg Mining University</publisher-name>
      </publisher>
    </journal-meta>
    <article-meta>
      <article-id custom-type="pmi" pub-id-type="custom">pmi-12710</article-id>
      <article-id pub-id-type="uri">https://pmi.spmi.ru/pmi/article/view/12710</article-id>
      <article-categories/>
      <title-group>
        <article-title xml:lang="en">About one question of analysis</article-title>
        <trans-title-group xml:lang="ru">
          <trans-title>Об одном вопросе анализа</trans-title>
        </trans-title-group>
      </title-group>
      <contrib-group>
        <contrib contrib-type="author" corresp="yes">
          <name name-style="eastern">
            <surname>Konstantinesku</surname>
            <given-names>I. </given-names>
          </name>
          <name-alternatives>
            <name name-style="eastern" xml:lang="ru">
              <surname>Константинеску</surname>
              <given-names>И. </given-names>
            </name>
            <name name-style="western" xml:lang="en">
              <surname>Konstantinesku</surname>
              <given-names>I. </given-names>
            </name>
          </name-alternatives>
          <email>pmi@spmi.ru</email>
          <xref ref-type="aff" rid="aff1"/>
        </contrib>
        <aff-alternatives id="aff1">
          <aff>
            <institution xml:lang="ru"/>
          </aff>
          <aff>
            <institution xml:lang="en"/>
          </aff>
        </aff-alternatives>
      </contrib-group>
      <pub-date pub-type="epub" iso-8601-date="1964-02-14">
        <day>14</day>
        <month>02</month>
        <year>1964</year>
      </pub-date>
      <pub-date date-type="collection">
        <year>1964</year>
      </pub-date>
      <volume>43</volume>
      <issue>3</issue>
      <fpage>43</fpage>
      <lpage>47</lpage>
      <history>
        <date date-type="received" iso-8601-date="1963-09-23">
          <day>23</day>
          <month>09</month>
          <year>1963</year>
        </date>
        <date date-type="accepted" iso-8601-date="1963-11-01">
          <day>01</day>
          <month>11</month>
          <year>1963</year>
        </date>
        <date date-type="rev-recd" iso-8601-date="1964-02-14">
          <day>14</day>
          <month>02</month>
          <year>1964</year>
        </date>
      </history>
      <permissions>
        <copyright-statement>© I.  Konstantinesku</copyright-statement>
        <copyright-year>1964</copyright-year>
        <copyright-holder xml:lang="ru">И.  Константинеску</copyright-holder>
        <copyright-holder xml:lang="en">I.  Konstantinesku</copyright-holder>
        <license xlink:href="http://creativecommons.org/licenses/by/4.0">
          <license-p>CC BY 4.0</license-p>
        </license>
      </permissions>
      <self-uri xlink:type="simple" xlink:href="https://pmi.spmi.ru/pmi/article/view/12710">https://pmi.spmi.ru/pmi/article/view/12710</self-uri>
      <abstract xml:lang="ru">
        <p>К. Бегл формулирует определения непрерывности и производ­ной но направлению в пространстве Rn так, чтобы они соответственно имели единую общую форму для всех n и совпадали при n=1 с соответ­ствующими определениями для функций от одной переменной. Кроме понятия непрерывности введены последовательно понятия производной, интеграла, сходимости, полунепрерывное, пре­дела, выражаемые в единой и общей форме.</p>
      </abstract>
      <abstract xml:lang="en">
        <p>К. Begl formulates the definitions of continuity and derivative in the direction in the space Rn in such a way that they respectively have a unified general form for all n and coincide at n=1 with the corresponding definitions for functions of one variable. In addition to the concept of continuity, the concepts of derivative, integral, convergence, semi-continuous, limit, expressed in a unified and general form, are introduced successively.</p>
      </abstract>
    </article-meta>
  </front>
  <body/>
  <back>
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</article>
