On cospectrality of gain graphs
We define GG-cospectrality of two GG-gain graphs (Γ,ψ)\left(\Gamma ,\psi ) and (Γ′,ψ′)\left(\Gamma ^{\prime} ,\psi ^{\prime} ), proving that it is a switching isomorphism invariant. When GG is a finite group, we prove that GG-cospectrality is equivalent to cospectrality with respect to all unitary r...
| Published in: | Special Matrices |
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| Main Authors: | , |
| Format: | Article |
| Language: | English |
| Published: |
De Gruyter
2022-06-01
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| Subjects: | |
| Online Access: | https://doi.org/10.1515/spma-2022-0169 |