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- Richard A. Brualdi, Eliseu Fritscher
- Discrete Mathematics
- 2015

- Kinkar Chandra Das, Eliseu Fritscher, Lucélia Kowalski Pinheiro, Vilmar Trevisan
- Discrete Applied Mathematics
- 2017

- Richard A. Brualdi, Eliseu Fritscher
- Discrete Applied Mathematics
- 2015

We investigate tournaments with a specified score vector having additional structure: loopy tournaments in which loops are allowed, Hankel tournaments which are tournaments symmetric about the Hankel diagonal (the anti-diagonal), and combinatorially skew-Hankel tournaments which are skew-symmetric about the Hankel diagonal. In each case, we obtain necessary… (More)

- Eliseu Fritscher, Carlos Hoppen, Vilmar Trevisan
- ArXiv
- 2013

We introduce a new operation on a class of graphs with the property that the Laplacian eigenvalues of the input and output graphs are related. Based on this operation, we obtain a family of Θ( √ n) noncospectral unicyclic graphs on n vertices with the same Laplacian energy.

- Eliseu Fritscher, Vilmar Trevisan
- SIAM J. Matrix Analysis Applications
- 2016

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