The Solvability of a System of Quaternion Matrix Equations Involving ϕ-Skew-Hermicity
The Solvability of a System of Quaternion Matrix Equations Involving ϕ-Skew-Hermicity
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DOI:
10.3390/sym14061273
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发表时间:
2022-06
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影响因子:
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通讯作者:
Zhuo-Heng He;Xiao-na Zhang;Yunfang Zhao;Shao-Wen Yu
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文献类型:
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作者:
Zhuo-Heng He;Xiao-na Zhang;Yunfang Zhao;Shao-Wen Yu
Let H be the real quaternion algebra and Hm×n denote the set of all m×n matrices over H. For A∈Hm×n, we denote by Aϕ the n×m matrix obtained by applying ϕ entrywise to the transposed matrix AT, where ϕ is a non-standard involution of H. A∈Hn×n is said to be ϕ-skew-Hermicity if A=−Aϕ. In this paper, we provide some necessary and sufficient conditions for the existence of a ϕ-skew-Hermitian solution to the system of quaternion matrix equations with four unknowns AiXi(Ai)ϕ+BiXi+1(Bi)ϕ=Ci,(i=1,2,3),A4X4(A4)ϕ=C4.