On a conjecture of He concerning the spectral reconstruction of matrices
Wei Wang
and Zongben Xu
DOI: 10.1007/s10801-008-0164-x
Abstract
This paper is concerned with a recent conjecture of He (Electron. J. Comb. 14(1), 2007) on the spectral reconstruction of matrices. A counterexample is provided by using Hadamard matrices. We also give some results to the above mentioned conjecture (with slight modifications) in the positive direction.
Pages: 311–321
Keywords: keywords reconstruction; Hadamard matrix
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