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Constructing cospectral graphs via regular rational orthogonal matrices with level two |
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| Affiliation: | 1. School of Arts and Sciences, Shaanxi University of Science & Technology, Xi''an Weiyang University Park, Xi''an, 710021, PR China;2. School of Mathematics and Statistics, Xi''an Jiaotong University, No. 28 Xianning West Road, Xi''an, 710049, PR China;3. School of Science, Chang''an University, Middle-section of Nan''er Huan Road, Xi''an, 710064, PR China |
| Abstract: | |
| Keywords: | Graph spectra Cospectral graphs GM-switching Rational orthogonal matrix |
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