159 citations
- Roma Tre UniversityIT19 papers
- Istituto Nazionale di Fisica Nucleare, Sezione di Roma IIT7 papers
- Politecnico di MilanoIT7 papers
- Sapienza University of RomeIT7 papers
- University of Naples Federico IIIT7 papers
- University of Rome Tor VergataIT7 papers
- Giustino Fortunato UniversityIT6 papers
- Graz University of TechnologyAT6 papers
- Mediterranean Institute of Fundamental PhysicsIT6 papers
- Chinese Academy of SciencesCN5 papers
- Gubkin Russian State University of Oil and GasRU5 papers
- Institute of AcousticsCN4 papers
Showing 2021 · math.COShow all
2 papers · 2 filters
math.CO2021★ 10 cited
On cospectrality of gain graphs
Matteo Cavaleri, Alfredo Donno
We define -cospectrality of two -gain graphs and , proving that it is a switching isomorphism invariant. When is a finite group, we prove that -cospec…
math.CO2021★ 6 cited
Characterizations of line graphs in signed and gain graphs
Matteo Cavaleri, Daniele D'Angeli, Alfredo Donno
We generalize three classical characterizations of line graphs to line graphs of signed and gain graphs: the Krausz's characterization, the van Rooij and Wilf's characterization an…