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20122023
most citedEigenvalue location in cographs

24 citations · 140 across the 20 of their papers we have counts for

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Showing 2019Show all

7 papers · 1 filter

math.CO2019★ 11 cited

Energies of Hypergraphs

Kauê Cardoso, Vilmar Trevisan

In this paper, we study energies associated with hypergraphs. More precisely, we obtain results for the incidence and the singless Laplacian energies of uniform hypergraphs. In par…

math.SP2019★ 16 cited

The Signless Laplacian Matrix of Hypergraphs

Kauê Cardoso, Vilmar Trevisan

In this paper we define signless Laplacian matrix of a hypergraph and obtain structural properties from its eigenvalues. We generalize several known results for graphs, relating th…

math.SP2019★ 1 cited

Principal eigenvectors of general hypergraphs

Kauê Cardoso, Vilmar Trevisan

In this paper we obtain bounds for the extreme entries of the principal eigenvector of hypergraphs; these bounds are computed using the spectral radius and some classical parameter…

math.SP2019★ 10 cited

The spectrum of a class of uniform hypergraphs

Kauê Cardoso, Carlos Hoppen, Vilmar Trevisan

A generalized power hypergraph is obtained from a base hypergraph by means of some simple edge-expansion operations. Kang, Liu, Qi and Yuan [8] prov…

math.CO2019

Null Decomposition of Unicyclic Graphs

Luiz Emilio Allem, Daniel Alejandro Jaume, Gonzalo Molina +2

In this work we obtain basis for the null space of unicyclic graphs. We extend the null decomposition of trees from [11] for unicyclic graphs. As an application, we obtain closed f…

math.CO2019

Independence and Matching Numbers of Unicyclic Graphs From Null Space

Luiz Emilio Allem, Daniel Alejandro Jaume, Gonzalo Molina +2

We characterize unicyclic graphs that are singular using the support of the null space of their pendant trees. From this, we obtain closed formulas for the independence and matchin…