The 2-refined neutrosophic quaternions numbers

This paper explores the concept of 2-refined neutrosophic quaternion numbers by first introducing their formal definition along with the notion of equality between two such numbers. Furthermore, the study develops the foundational algebra of 2-refined neutrosophic quaternions through the operations of addition, product, division, and conjugation. The article also addresses the methods for calculate both the absolute value and the inverse of a 2-refined neutrosophic quaternion number.