<?xml version="1.0" encoding="UTF-8"?>
<article article-type="Research Article">
  <front>
    <journal-meta>
      <journal-id journal-id-type="publisher">journal-of-discrete-mathematical-sciences-and-cryptography</journal-id>
      <journal-title-group>
        <journal-title>Journal of Discrete Mathematical Sciences and Cryptography</journal-title>
      </journal-title-group>
      <issn publication-format="electronic">2169-0065</issn>
      <issn publication-format="print">0972-0529</issn>
      <publisher>
        <publisher-name>Taru Publications</publisher-name>
      </publisher>
    </journal-meta>
    <article-meta>
      <article-id pub-id-type="doi">10.1080/09720529.2021.1923923</article-id>
      <title-group>
        <article-title>Hyper and multiple f-index of nano star dendrimers</article-title>
      </title-group>
      <contrib-group>
        <contrib contrib-type="author" corresp="yes">
          <name>
            <surname>Ghobadi</surname>
            <given-names>Sirous</given-names>
          </name>
          <aff>Department of Mathematics, Qaemshahr Branch, Islamic Azad University, Qaemshahr, Iran</aff>
        </contrib>
        <contrib contrib-type="author">
          <name>
            <surname>Ghods</surname>
            <given-names>Masoud</given-names>
          </name>
          <aff>Department of Mathematics, Faculty of Mathematics, Statistics and Computer Science, Semnan University, Semnan, Iran</aff>
        </contrib>
        <contrib contrib-type="author">
          <name>
            <surname>Ghorbaninejad</surname>
            <given-names>Mobina</given-names>
          </name>
          <aff>Department of Mathematics, Allame Tabarsi Institute, Qaemshahr, Iran</aff>
        </contrib>
      </contrib-group>
      <volume>26</volume>
      <issue>6</issue>
      <fpage>1623</fpage>
      <lpage>1638</lpage>
      <pub-date date-type="pub">
        <day>24</day>
        <month>05</month>
        <year>2022</year>
      </pub-date>
      <abstract>
        <p>Dendrimers are branching molecules that consist of a central part attached to tree-like branches which are repeatedly connected to each other. Topological indices of a molecular graph are real numbers associated with graphs, which represents some of the properties of the molecule. In this article, we obtaine precise formulas for the hyper F-index and multiple F-index of a number of nano star dendrimers.</p>
      </abstract>
      <kwd-group>
        <kwd>F-index</kwd>
        <kwd>Hyper F-index</kwd>
        <kwd>Multiple F-index</kwd>
        <kwd>Nano star dendrimer</kwd>
      </kwd-group>
      <custom-meta-group>
        <custom-meta>
          <meta-name>access</meta-name>
          <meta-value>open</meta-value>
        </custom-meta>
        <custom-meta>
          <meta-name>retracted</meta-name>
          <meta-value>no</meta-value>
        </custom-meta>
      </custom-meta-group>
    </article-meta>
  </front>
</article>
