It is a hot topic that circulant type matrices are applied to networks engineering. The determinantsand inverses of Tribonacci circulant type matrices are discussed in the paper. Firstly, Tribonaccicirculant type matrices are defined. In addition, we show the invertibility of Tribonacci circulantmatrix and present the determinant and the inverse matrix based on constructing the transformationmatrices. By utilizing the relation between left circulant, g-circulant matrices and circulant matrix,the invertibility of Tribonacci left circulant and Tribonacci g-circulant matrices is also discussed. Finally, the determinants and inverse matrices of these matrices are given, respectively.
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