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For any pair of n× ncomplex matrices A,C,let ∂W(C,A) be the boundary of . In this note, we shall extend some results about ∂W(C, A) and use these results to study the normality of matrices.
*The author wishes to express his thanks to Dr. Yik Hoi Au-Yeung for his valuable advice.
*The author wishes to express his thanks to Dr. Yik Hoi Au-Yeung for his valuable advice.
*The author wishes to express his thanks to Dr. Yik Hoi Au-Yeung for his valuable advice.
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