University of Guilan Journal of Algebra and Related Topics 2345-3931 11 2 2023 12 01 Dokdo sub-hoops and Dokdo filters of hoops 149 164 7140 10.22124/jart.2023.21930.1391 EN S. Z. Song Department of Mathematics, Jeju National University, South korea 0000-0002-2383-664X Y. B. Jun Gyeongsang National University, Chinju, South Korea Journal Article 2022 03 11 The concepts of Dokdo sub-hoops and Dokdo filters are introduced‎, ‎and their properties are investigated.‎‎ The relationship between Dokdo sub-hoops and Dokdo filters is discussed‎, ‎and‎‎ characterizations of Dokdo sub-hoops and Dokdo filters are established.‎ bipolar fuzzy set Dokdo sub-hoop Dokdo filter https://jart.guilan.ac.ir/article_7140_29a68306deb335753cd99e433a108073.pdf