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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="en"><front><journal-meta><journal-id journal-id-type="publisher-id">mrisel</journal-id><journal-title-group><journal-title xml:lang="en">Magnetic Resonance in Solids</journal-title><trans-title-group xml:lang="ru"><trans-title>Magnetic Resonance in Solids</trans-title></trans-title-group></journal-title-group><issn pub-type="epub">2072-5981</issn><publisher><publisher-name>Kazan Federal University</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="doi">10.26907/mrsej-24105</article-id><article-id custom-type="elpub" pub-id-type="custom">mrisel-244</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></article-categories><title-group><article-title>Fractals and fractional integrals: Are there some accurate relationships between them?</article-title><trans-title-group xml:lang="ru"><trans-title></trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="western" xml:lang="en"><surname>Nigmatullin</surname><given-names>R. R.</given-names></name></name-alternatives><bio xml:lang="en"><p>Kazan 420111</p></bio><email xlink:type="simple">renigmat@gmail.com</email><xref ref-type="aff" rid="aff-1"/></contrib></contrib-group><aff xml:lang="en" id="aff-1"><institution>Kazan National Research Technical University (KAI)</institution><country>Russian Federation</country></aff><pub-date pub-type="collection"><year>2024</year></pub-date><pub-date pub-type="epub"><day>19</day><month>04</month><year>2024</year></pub-date><volume>26</volume><issue>1</issue><issue-title>SPECIAL ISSUE dedicated to Boris I. Kochelaev's 90th birthday</issue-title><elocation-id>24105 (14 pp.)</elocation-id><permissions><copyright-statement>Copyright &amp;#x00A9; Nigmatullin R.R., 2024</copyright-statement><copyright-year>2024</copyright-year><copyright-holder xml:lang="ru">Nigmatullin R.R.</copyright-holder><copyright-holder xml:lang="en">Nigmatullin R.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.mrsej.ru/jour/article/view/244">https://www.mrsej.ru/jour/article/view/244</self-uri><abstract><p>This study establishes precise links between the fractional integral of the RL-type and the averaging technique of a smooth function over 1D-fractal sets. These findings were previously reported in the works [<xref ref-type="bibr" rid="cit1">1</xref>], [<xref ref-type="bibr" rid="cit2">2</xref>]. To draw in the interest of other experts operating in the NMR/EPR zones, it is helpful to repeat them again. The physical meaning of these acquired formulas is explained and numerical verifications are performed with the purpose of confirming the analytical results. Furthermore, results were achieved for a combination of fractal circuits with a discrete set of fractal dimensions that were generalized. We suppose that these new results help understand deeper the intimate links between fractals and fractional integrals of different types, especially in applications of the fractional operators in complex systems.</p></abstract><kwd-group xml:lang="en"><kwd>1D-Fractals</kwd><kwd>Riemann-Liouville fractional integrals</kwd><kwd>averaging procedure over 1D Cantor sets</kwd><kwd>the generalized self-similar electric circuits</kwd></kwd-group><funding-group><funding-statement xml:lang="en">Dr. Prof. Len Dissado and Dr. Prof. Robert Hill, two English researchers, provided significant inspiration for the substance of this study. Profound conversations and seminars with them during the author’s (in 1982-1983 years) visit to Chelsea College (London University) enabled the author of this study to comprehend this issue and formulate some problems in this interesting area of research.</funding-statement></funding-group></article-meta></front><back><ref-list><title>References</title><ref id="cit1"><label>1</label><citation-alternatives><mixed-citation xml:lang="ru">Nigmatullin R. R., Le Mehaute A., Journal of non-crystalline solids 351, 2888 (2005)</mixed-citation><mixed-citation xml:lang="en">Nigmatullin R. 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