AIMS Mathematics (Jun 2021)

Commutative ideals of BCK-algebras and BCI-algebras based on soju structures

  • Seok-Zun Song ,
  • Hee Sik Kim,
  • Young Bae Jun

DOI
https://doi.org/10.3934/math.2021497
Journal volume & issue
Vol. 6, no. 8
pp. 8567 – 8584

Abstract

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The concept of a commutative soju ideal in a BCK-algebra and a BCI-algebra is introduced, and their properties are investigated. The relationship between a soju ideal and a commutative soju ideal are discussed, and examples to show that any soju ideal may not be a commutative soju ideal are provided. Conditions for a soju ideal to be a commutative soju ideal are considered, and characterizations of a commutative soju ideal are studied. A new commutative soju ideal using the given commutative soju ideal is maded, and the extension property for a commutative soju ideal is established. A commutative soju ideal is established by using a commutative ideal of a BCI-algebra. The notion of a closed soju ideal in a BCI-algebra is also introduced, and it is used in studying the characterization of a commutative soju ideal.

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