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    <journal-meta>
      <journal-id journal-id-type="nlm-ta">REA Press</journal-id>
      <journal-id journal-id-type="publisher-id">null</journal-id>
      <journal-title>REA Press</journal-title><issn pub-type="ppub">3042-1330</issn><issn pub-type="epub">3042-1330</issn><publisher>
      	<publisher-name>REA Press</publisher-name>
      </publisher>
    </journal-meta>
    <article-meta>
      <article-id pub-id-type="doi">https://doi.org/10.48313/uda.v2i3.75</article-id>
      <article-categories>
        <subj-group subj-group-type="heading">
          <subject>Research Article</subject>
        </subj-group>
        <subj-group><subject>Positive ideal solutions and negative ideal solutions, Trapezoidal fuzzy numbers, Transgender and fuzzy TOPSIS decision making, Optimization problems</subject></subj-group>
      </article-categories>
      <title-group>
        <article-title>A trapezoidal fuzzy TOPSIS method for solving decision-making problems under uncertainty</article-title><subtitle>A trapezoidal fuzzy TOPSIS method for solving decision-making problems under uncertainty</subtitle></title-group>
      <contrib-group><contrib contrib-type="author">
	<name name-style="western">
	<surname>Saraswathi</surname>
		<given-names>Appasamy </given-names>
	</name>
	<aff>Department of Mathematics, SRM Institute of Science and Technology, Kattankulathur – 603 203, Tamilnadu, India.</aff>
	</contrib><contrib contrib-type="author">
	<name name-style="western">
	<surname>Nedumaran</surname>
		<given-names>P</given-names>
	</name>
	<aff>Department of Mathematics, Guru Nanak College, Chennai, Tamilnadu, India.</aff>
	</contrib></contrib-group>		
      <pub-date pub-type="ppub">
        <month>09</month>
        <year>2025</year>
      </pub-date>
      <pub-date pub-type="epub">
        <day>16</day>
        <month>09</month>
        <year>2025</year>
      </pub-date>
      <volume>2</volume>
      <issue>3</issue>
      <permissions>
        <copyright-statement>© 2025 REA Press</copyright-statement>
        <copyright-year>2025</copyright-year>
        <license license-type="open-access" xlink:href="http://creativecommons.org/licenses/by/2.5/"><p>This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.</p></license>
      </permissions>
      <related-article related-article-type="companion" vol="2" page="e235" id="RA1" ext-link-type="pmc">
			<article-title>A trapezoidal fuzzy TOPSIS method for solving decision-making problems under uncertainty</article-title>
      </related-article>
	  <abstract abstract-type="toc">
		<p>
			A fuzzy set is a mathematical construct that assigns a membership grade to each element within a universe of discourse, representing the degree to which the element belongs to the set. This approach extends classical binary logic by allowing continuous values between 0 and 1, making it a natural framework for handling uncertainties and vague concepts often expressed in natural language. Fuzzy sets are particularly powerful in modeling real- world scenarios where ambiguity and imprecision are inherent, such as in human decision-making, linguistic expressions, and complex systems. In order to analyze the ranking using the problems of transgender people, we developed a Fuzzy Multiple Criteria Decision Making (FMCDM) problem in this paper. We used the Technique for Order Performance by Similarity to the Ideal Solution (TOPSIS) and the new concept of positive and Negative Ideal Solutions (NIS), along with the weights of criteria in linguistic terms. The suggested approach gives us a practical means of addressing the fuzzy multiple attribute group decision-making problem. Therefore, an extension of the TOPSIS method is proposed using a Trapezoidal Fuzzy Number (TpFN), where the correlation information among factors provided by experts is in the form of uncertain linguistic terms and is transformed into a TpFN. At the conclusion of this paper, an example is provided to illustrate the steps involved in the suggested method.
		</p>
		</abstract>
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