Abstract
In this paper, we define fuzzy matrices (FM), intuitionistic fuzzy matrices (IFM) and a new operation \( * \) defined on the set \( I_{n} = \left\{ {1,2, \ldots ,n} \right\}. \) The system \( (I_{n} , * ) \) is an abelian group. This group is pivotal in our paper. Circulant intuitionistic fuzzy matrices is defined also in this paper via the group \( (I_{n} , * ) \) as a new way for defining circulant matrices. However, we study and investigate several properties of circulant intuitionistic fuzzy matrices. The first row (column) of a circulant matrix plays an important role in our studying. From any intuitionistic fuzzy matrix R (not necessarily circulant) we can construct two circulant intuitionistic fuzzy matrices \( R_{L} \) and \( R_{U} \) such that \( R_{L} \le R \le R_{U} \). We also show that some compositions of circulant intuitionistic fuzzy matrices are also circulant. Moreover, we proved that \( RS = SR \) for two circulant intuitionistic fuzzy matrices \( R \) and \( S \). However, we give some examples to clarify our results.
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Emam, E.G. On the circulant intuitionistic fuzzy matrices. Soft Comput 25, 4621–4628 (2021). https://doi.org/10.1007/s00500-020-05468-5
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DOI: https://doi.org/10.1007/s00500-020-05468-5