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of the estonian academy of sciences
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Right linear map preserving the left spectrum of 2x2 quaternion matrices; pp. 378–386

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Deyu Duan, Xiang Gong, Geng Yuan, Fahui Zhai


In this paper, the form of a right linear map preserving the left spectrum of quaternion matrices of order 2 is characterized. The obtained conclusion is different from the classical results of the linear map preserving eigenvalues of complex matrices.


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