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	<id>https://ifigenia.org/index.php?action=history&amp;feed=atom&amp;title=Issue%3A%28%CE%B1%2C%CE%B2%29-Interval-valued_intuitionistic_fuzzy_subgroups</id>
	<title>Issue:(α,β)-Interval-valued intuitionistic fuzzy subgroups - Revision history</title>
	<link rel="self" type="application/atom+xml" href="https://ifigenia.org/index.php?action=history&amp;feed=atom&amp;title=Issue%3A%28%CE%B1%2C%CE%B2%29-Interval-valued_intuitionistic_fuzzy_subgroups"/>
	<link rel="alternate" type="text/html" href="https://ifigenia.org/index.php?title=Issue:(%CE%B1,%CE%B2)-Interval-valued_intuitionistic_fuzzy_subgroups&amp;action=history"/>
	<updated>2026-04-27T21:27:11Z</updated>
	<subtitle>Revision history for this page on the wiki</subtitle>
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	<entry>
		<id>https://ifigenia.org/index.php?title=Issue:(%CE%B1,%CE%B2)-Interval-valued_intuitionistic_fuzzy_subgroups&amp;diff=13945&amp;oldid=prev</id>
		<title>Vassia Atanassova: + added reference</title>
		<link rel="alternate" type="text/html" href="https://ifigenia.org/index.php?title=Issue:(%CE%B1,%CE%B2)-Interval-valued_intuitionistic_fuzzy_subgroups&amp;diff=13945&amp;oldid=prev"/>
		<updated>2025-06-26T08:13:18Z</updated>

		<summary type="html">&lt;p&gt;+ added reference&lt;/p&gt;
&lt;table style=&quot;background-color: #fff; color: #202122;&quot; data-mw=&quot;interface&quot;&gt;
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				&lt;td colspan=&quot;2&quot; style=&quot;background-color: #fff; color: #202122; text-align: center;&quot;&gt;← Older revision&lt;/td&gt;
				&lt;td colspan=&quot;2&quot; style=&quot;background-color: #fff; color: #202122; text-align: center;&quot;&gt;Revision as of 11:13, 26 June 2025&lt;/td&gt;
				&lt;/tr&gt;&lt;tr&gt;&lt;td colspan=&quot;2&quot; class=&quot;diff-lineno&quot; id=&quot;mw-diff-left-l36&quot;&gt;Line 36:&lt;/td&gt;
&lt;td colspan=&quot;2&quot; class=&quot;diff-lineno&quot;&gt;Line 36:&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;# Atanassov, K. T. (1999). Intuitionistic Fuzzy Sets: Theory and Applications. Springer, Heidelberg.&lt;/div&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;# Atanassov, K. T. (1999). Intuitionistic Fuzzy Sets: Theory and Applications. Springer, Heidelberg.&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;# Atanassov, K. T. (2018). Intuitionistic fuzzy sets and interval valued intuitionistic fuzzy sets. Advanced Studies in Contemporary Mathematics, 28(2), 167–176.&lt;/div&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;# Atanassov, K. T. (2018). Intuitionistic fuzzy sets and interval valued intuitionistic fuzzy sets. Advanced Studies in Contemporary Mathematics, 28(2), 167–176.&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td colspan=&quot;2&quot; class=&quot;diff-side-deleted&quot;&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;+&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;&lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;# Atanassov, K. T. (2024). Intuitionistic fuzzy modal multi-topological structures and intuitionistic fuzzy multi-modal multi-topological structures. Mathematics, 12(3), Article 361.&lt;/ins&gt;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;# Aygünoğlu, A., Varol Pazar, B., Çetkin, V., &amp;amp; Aygün, H. (2012). Interval-valued intuitionistic fuzzy subgroups on interval-valued double t-norm. Neural Computing &amp;amp; Applications, 21(1), 207–214.&lt;/div&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;# Aygünoğlu, A., Varol Pazar, B., Çetkin, V., &amp;amp; Aygün, H. (2012). Interval-valued intuitionistic fuzzy subgroups on interval-valued double t-norm. Neural Computing &amp;amp; Applications, 21(1), 207–214.&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;# Bal, A., Çuvalcıoğlu, G., &amp;amp; Tuğrul, F. (2022). On some fundamental properties of α-interval valued fuzzy subgroups. Thermal Science, 26(Spec. Issue 2), 681–693.&lt;/div&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;# Bal, A., Çuvalcıoğlu, G., &amp;amp; Tuğrul, F. (2022). On some fundamental properties of α-interval valued fuzzy subgroups. Thermal Science, 26(Spec. Issue 2), 681–693.&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;/table&gt;</summary>
		<author><name>Vassia Atanassova</name></author>
	</entry>
	<entry>
		<id>https://ifigenia.org/index.php?title=Issue:(%CE%B1,%CE%B2)-Interval-valued_intuitionistic_fuzzy_subgroups&amp;diff=13943&amp;oldid=prev</id>
		<title>Vassia Atanassova at 13:59, 25 June 2025</title>
		<link rel="alternate" type="text/html" href="https://ifigenia.org/index.php?title=Issue:(%CE%B1,%CE%B2)-Interval-valued_intuitionistic_fuzzy_subgroups&amp;diff=13943&amp;oldid=prev"/>
		<updated>2025-06-25T13:59:24Z</updated>

		<summary type="html">&lt;p&gt;&lt;/p&gt;
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				&lt;td colspan=&quot;2&quot; style=&quot;background-color: #fff; color: #202122; text-align: center;&quot;&gt;← Older revision&lt;/td&gt;
				&lt;td colspan=&quot;2&quot; style=&quot;background-color: #fff; color: #202122; text-align: center;&quot;&gt;Revision as of 16:59, 25 June 2025&lt;/td&gt;
				&lt;/tr&gt;&lt;tr&gt;&lt;td colspan=&quot;2&quot; class=&quot;diff-lineno&quot; id=&quot;mw-diff-left-l27&quot;&gt;Line 27:&lt;/td&gt;
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&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;  | format          = PDF&lt;/div&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;  | format          = PDF&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;  | size            = 787&lt;/div&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;  | size            = 787&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;−&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;  | abstract        = In this paper, (α,β)-interval-valued intuitionistic fuzzy subgroups are studied. The definition of these structures are given by using (&lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;&lt;/del&gt;,&lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;&lt;/del&gt;)-interval-valued intuitionistic fuzzy sets. The structural properties of these subgroups are studied. Some examples are given about these structures to satisfy the conditions of propositions.  &lt;/div&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;+&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;  | abstract        = In this paper, (α,β)-interval-valued intuitionistic fuzzy subgroups are studied. The definition of these structures are given by using (&lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;α&lt;/ins&gt;,&lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;β&lt;/ins&gt;)-interval-valued intuitionistic fuzzy sets. The structural properties of these subgroups are studied. Some examples are given about these structures to satisfy the conditions of propositions.  &lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;  | keywords        = Interval-valued intuitionistic fuzzy sets, (α,β)-interval-valued intuitionistic fuzzy sets, (α,β)-interval-valued intuitionistic fuzzy subgroups&lt;/div&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;  | keywords        = Interval-valued intuitionistic fuzzy sets, (α,β)-interval-valued intuitionistic fuzzy sets, (α,β)-interval-valued intuitionistic fuzzy subgroups&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;  | ams             =  03E72, 18B40, 08A72.&lt;/div&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;  | ams             =  03E72, 18B40, 08A72.&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;/table&gt;</summary>
		<author><name>Vassia Atanassova</name></author>
	</entry>
	<entry>
		<id>https://ifigenia.org/index.php?title=Issue:(%CE%B1,%CE%B2)-Interval-valued_intuitionistic_fuzzy_subgroups&amp;diff=13931&amp;oldid=prev</id>
		<title>Vassia Atanassova: 787 kb</title>
		<link rel="alternate" type="text/html" href="https://ifigenia.org/index.php?title=Issue:(%CE%B1,%CE%B2)-Interval-valued_intuitionistic_fuzzy_subgroups&amp;diff=13931&amp;oldid=prev"/>
		<updated>2025-06-25T11:19:40Z</updated>

		<summary type="html">&lt;p&gt;787 kb&lt;/p&gt;
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				&lt;td colspan=&quot;2&quot; style=&quot;background-color: #fff; color: #202122; text-align: center;&quot;&gt;← Older revision&lt;/td&gt;
				&lt;td colspan=&quot;2&quot; style=&quot;background-color: #fff; color: #202122; text-align: center;&quot;&gt;Revision as of 14:19, 25 June 2025&lt;/td&gt;
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&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;  | file            = NIFS-31-2-195-206.pdf&lt;/div&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;  | file            = NIFS-31-2-195-206.pdf&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
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&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;  | abstract        = In this paper, (α,β)-interval-valued intuitionistic fuzzy subgroups are studied. The definition of these structures are given by using (,)-interval-valued intuitionistic fuzzy sets. The structural properties of these subgroups are studied. Some examples are given about these structures to satisfy the conditions of propositions.  &lt;/div&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;  | abstract        = In this paper, (α,β)-interval-valued intuitionistic fuzzy subgroups are studied. The definition of these structures are given by using (,)-interval-valued intuitionistic fuzzy sets. The structural properties of these subgroups are studied. Some examples are given about these structures to satisfy the conditions of propositions.  &lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;  | keywords        = Interval-valued intuitionistic fuzzy sets, (α,β)-interval-valued intuitionistic fuzzy sets, (α,β)-interval-valued intuitionistic fuzzy subgroups&lt;/div&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;  | keywords        = Interval-valued intuitionistic fuzzy sets, (α,β)-interval-valued intuitionistic fuzzy sets, (α,β)-interval-valued intuitionistic fuzzy subgroups&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;/table&gt;</summary>
		<author><name>Vassia Atanassova</name></author>
	</entry>
	<entry>
		<id>https://ifigenia.org/index.php?title=Issue:(%CE%B1,%CE%B2)-Interval-valued_intuitionistic_fuzzy_subgroups&amp;diff=13905&amp;oldid=prev</id>
		<title>Vassia Atanassova: Created page with &quot;{{PAGENAME}} {{PAGENAME}} {{PAGENAME}} {{issue/title  | title           = (α,β)-Interval-valued intuitionistic fuzzy subgroups  | shortcut        = nifs/31/2/195-206 }} {{issue/author  | author          = Gökhan Çuvalcıoğlu		  | institution     = Department of Mathematics, Faculty of Science, Mersin University  | address         =...&quot;</title>
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		<updated>2025-06-25T11:08:32Z</updated>

		<summary type="html">&lt;p&gt;Created page with &amp;quot;&lt;a href=&quot;/wiki/Category:Publications_on_intuitionistic_fuzzy_sets&quot; title=&quot;Category:Publications on intuitionistic fuzzy sets&quot;&gt;{{PAGENAME}}&lt;/a&gt; &lt;a href=&quot;/wiki/Category:Publications_in_Notes_on_IFS&quot; title=&quot;Category:Publications in Notes on IFS&quot;&gt;{{PAGENAME}}&lt;/a&gt; &lt;a href=&quot;/wiki/Category:Publications_in_2025_year&quot; title=&quot;Category:Publications in 2025 year&quot;&gt;{{PAGENAME}}&lt;/a&gt; {{issue/title  | title           = (α,β)-Interval-valued intuitionistic fuzzy subgroups  | shortcut        = nifs/31/2/195-206 }} {{issue/author  | author          = Gökhan Çuvalcıoğlu		  | institution     = Department of Mathematics, Faculty of Science, Mersin University  | address         =...&amp;quot;&lt;/p&gt;
&lt;p&gt;&lt;b&gt;New page&lt;/b&gt;&lt;/p&gt;&lt;div&gt;[[Category:Publications on intuitionistic fuzzy sets|{{PAGENAME}}]]&lt;br /&gt;
[[Category:Publications in Notes on IFS|{{PAGENAME}}]]&lt;br /&gt;
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{{issue/title&lt;br /&gt;
 | title           = (α,β)-Interval-valued intuitionistic fuzzy subgroups&lt;br /&gt;
 | shortcut        = nifs/31/2/195-206&lt;br /&gt;
}}&lt;br /&gt;
{{issue/author&lt;br /&gt;
 | author          = Gökhan Çuvalcıoğlu		&lt;br /&gt;
 | institution     = Department of Mathematics, Faculty of Science, Mersin University&lt;br /&gt;
 | address         = Mersin, Türkiye&lt;br /&gt;
 | email-before-at = gcuvalcioglu&lt;br /&gt;
 | email-after-at  = gmail.com&lt;br /&gt;
 | orcid           = 0000-0001-5451-3336&lt;br /&gt;
}}&lt;br /&gt;
{{issue/author&lt;br /&gt;
 | author          = Arif Bal		&lt;br /&gt;
 | institution     = Department of Mathematics, Faculty of Science, Mersin University&lt;br /&gt;
 | address         = Mersin, Türkiye&lt;br /&gt;
 | email-after-at  = davjalandhar.com&lt;br /&gt;
 | orcid           = 0000-0003-4386-7416&lt;br /&gt;
}}&lt;br /&gt;
{{issue/data&lt;br /&gt;
 | issue           = [[Notes on Intuitionistic Fuzzy Sets/31/2|Notes on Intuitionistic Fuzzy Sets, Volume 31 (2025), Number 2]], pages 195–206&lt;br /&gt;
 | doi             = https://doi.org/10.7546/nifs.2025.31.2.195-206&lt;br /&gt;
 | file            = NIFS-31-2-195-206.pdf&lt;br /&gt;
 | format          = PDF&lt;br /&gt;
 | size            = 268&lt;br /&gt;
 | abstract        = In this paper, (α,β)-interval-valued intuitionistic fuzzy subgroups are studied. The definition of these structures are given by using (,)-interval-valued intuitionistic fuzzy sets. The structural properties of these subgroups are studied. Some examples are given about these structures to satisfy the conditions of propositions. &lt;br /&gt;
 | keywords        = Interval-valued intuitionistic fuzzy sets, (α,β)-interval-valued intuitionistic fuzzy sets, (α,β)-interval-valued intuitionistic fuzzy subgroups&lt;br /&gt;
 | ams             =  03E72, 18B40, 08A72.&lt;br /&gt;
 | references      = &lt;br /&gt;
# Atanassov, K. T. (1983). Intuitionistic fuzzy sets. VII ITKR’s Session, Sofia, June, (deposed in Central Sci.-Techn. Library of Bulg. Acad. Of Sci. No. 1697/84 (in Bulgarian). Reprinted: International Journal Bioautomation, 20 (1), 2016, S1–S6.&lt;br /&gt;
# Atanassov, K. T., &amp;amp; Gargov, G. (1989). Interval valued intuitionistic fuzzy sets. Fuzzy Sets and Systems, 31(3), 343–349.&lt;br /&gt;
# Atanassov, K. T. (1994). Operators over interval valued intuitionistic fuzzy sets. Fuzzy Sets and Systems, 64(2), 159–174.&lt;br /&gt;
# Atanassov, K. T. (1999). Intuitionistic Fuzzy Sets: Theory and Applications. Springer, Heidelberg.&lt;br /&gt;
# Atanassov, K. T. (2018). Intuitionistic fuzzy sets and interval valued intuitionistic fuzzy sets. Advanced Studies in Contemporary Mathematics, 28(2), 167–176.&lt;br /&gt;
# Aygünoğlu, A., Varol Pazar, B., Çetkin, V., &amp;amp; Aygün, H. (2012). Interval-valued intuitionistic fuzzy subgroups on interval-valued double t-norm. Neural Computing &amp;amp; Applications, 21(1), 207–214.&lt;br /&gt;
# Bal, A., Çuvalcıoğlu, G., &amp;amp; Tuğrul, F. (2022). On some fundamental properties of α-interval valued fuzzy subgroups. Thermal Science, 26(Spec. Issue 2), 681–693.&lt;br /&gt;
# Bal, A., Çuvalcıoğlu, G., &amp;amp; Altıncı, C. (2023). (α, β)-Interval valued intuitionistic fuzzy sets defined on (α, β)-interval valued set. Journal of Universal Mathematics, 6(1), 114–130.&lt;br /&gt;
# Biswas, R. (1994). Rosenfeld’s fuzzy subgroups with interval-valued membership functions. Fuzzy Sets and Systems, 63(1), 87–90.&lt;br /&gt;
# Çuvalcıoğlu, G., Bal, A., &amp;amp; Çitil, M. (2022). The α-interval valued fuzzy sets defined on α-interval valued set. Thermal Science, 26(Spec. Issue 2), 665–679.&lt;br /&gt;
# Grattan-Guiness, I. (1976). Fuzzy membership mapped onto interval and many-valued quantities. Mathematical Logic Quarterly, 22(1), 149–160.&lt;br /&gt;
# Gorzałczany, M. B. (1983). Approximate inference with interval-valued fuzzy sets: An outline. Proceedings of the Polish Symposium on Interval and Fuzzy Mathematics, Poznan, 26–29 August 1983, 89–95.&lt;br /&gt;
# Gorzałczany, M. B. (1987). A method of inference in approximate reasoning based on interval-valued fuzzy set. Fuzzy Sets and Systems, 21(1), 1–17.&lt;br /&gt;
# Jahn, K. U. (1975). Intervall-wertige Mengen. Mathematische Nachrichten, 68, 115–132.&lt;br /&gt;
# Kang, H.-W., &amp;amp; Hur, K. (2010). Interval-valued fuzzy subgroups and rings. Honam Mathematical Journal, 32(4), 593–617.&lt;br /&gt;
# Li, X., &amp;amp; Wang G. (1996). TH-interval valued fuzzy subgroups. Journal of Lanzhou University, 32, 96–99.&lt;br /&gt;
# Li, X., &amp;amp; Wang, G. (2000). The SH-interval-valued fuzzy subgroups. Fuzzy Sets and Systems, 112(2), 319–325.&lt;br /&gt;
# Mondal, T. K., &amp;amp; Samanta, S. K. (1999). Topology of interval-valued fuzzy sets. Indian Journal of Pure and Applied Mathematics, 30(1), 20–38.&lt;br /&gt;
# Mondal, T. K., &amp;amp; Samanta, S. K. (2001). Topology of interval-valued intuitionistic fuzzy sets. Fuzzy Sets and Systems, 119(3), 483–494.&lt;br /&gt;
# Pal, M., &amp;amp; Rashmanlou, H. (2013). Irregular interval-valued fuzzy graphs. Annals of Pure and Applied Mathematics, 3(1), 56–66.&lt;br /&gt;
# Rosenfeld, A. (1971). Fuzzy groups. Journal of Mathematical Analysis and Applications, 35(3), 512–517.&lt;br /&gt;
# Sambuc, R. (1975). Fonctions φ-floues. Application L’aide au Diagnostic en Pathologie Thyroidienne. Ph. D. Thesis, University of Marseille, France.&lt;br /&gt;
# Sharma, P. K. (2024). Intuitionistic fuzzy lattice ordered G-modules. Journal of Fuzzy Extension and Applications, 5(1), 141–158.&lt;br /&gt;
# Tarsuslu (Yılmaz), S. (2023). A study on intuitionistic fuzzy topological operators. Italian Journal of Pure and Applied Mathematics, 49, 863–875.&lt;br /&gt;
# Tarsuslu (Yılmaz), S. (2022). Intuitionistic fuzzy quasi-interior ideals in ordered Γ-semigroups. Annals of Oradea University, 29(1), 71–80.&lt;br /&gt;
# Tarsuslu (Yılmaz), S. &amp;amp; Çuvalcıoğlu, G. (2021). [[Issue:Intuitionistic fuzzy quasi-interior ideals of semigroups|Intuitionistic fuzzy quasi-interior ideals of semigroups]]. Notes on Intuitionistic Fuzzy Sets, 27(4), 36–43.&lt;br /&gt;
# Turksen, I. (1986). Interval valued fuzzy sets based on normal forms. Fuzzy Sets and Systems, 20(2), 191–210.&lt;br /&gt;
# Zadeh, L. A. (1965). Fuzzy sets. Information and Control, 8, 338–353.&lt;br /&gt;
# Zadeh, L. A. (1975). The concept of a linguistic variable and its application to approximate reasoning–I. Information Sciences, 8(3), 199–249.&lt;br /&gt;
# Zadeh, L. A. (1975). The concept of a linguistic variable and its application to approximate reasoning–II. Information Sciences, 8(4), 301–357.&lt;br /&gt;
# Zadeh, L. A. (1975). The concept of a linguistic variable and its application to approximate reasoning–III. Information Sciences, 9(1), 43–80.&lt;br /&gt;
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}}&lt;/div&gt;</summary>
		<author><name>Vassia Atanassova</name></author>
	</entry>
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