| The characteristic polynomial of the Laplacian of graphs in (a, b)-linear classes CS Oliveira, NMM de Abreu, S Jurkiewicz Linear algebra and its applications 356 (1-3), 113-121, 2002 | 95 | 2002 |
| The smallest eigenvalue of the signless Laplacian LS De Lima, CS Oliveira, NMM De Abreu, V Nikiforov Linear algebra and its applications 435 (10), 2570-2584, 2011 | 73 | 2011 |
| Bounds on the index of the signless Laplacian of a graph CS Oliveira, LS de Lima, NMM de Abreu, P Hansen Discrete Applied Mathematics 158 (4), 355-360, 2010 | 66 | 2010 |
| Bounds on the Q-spread of a graph CS Oliveira, LS De Lima, NMM de Abreu, S Kirkland Linear algebra and its applications 432 (9), 2342-2351, 2010 | 47 | 2010 |
| Variable neighborhood search for extremal graphs. XI. bounds on algebraic connectivity S Belhaiza, NMM De Abreu, P Hansen, CS Oliveira Graph theory and combinatorial optimization, 1-16, 2005 | 45 | 2005 |
| The clique number and the smallest Q-eigenvalue of graphs L De Lima, V Nikiforov, C Oliveira Discrete Mathematics 339 (6), 1744-1752, 2016 | 16 | 2016 |
| Measures of irregularity of graphs JA Oliveira, CS Oliveira, C Justel, NMM Abreu Pesquisa Operacional 33, 383-398, 2013 | 15 | 2013 |
| Positive semidefiniteness of Aα (G) on some families of graphs AE Brondani, FAM França, CS Oliveira Discrete Applied Mathematics 323, 113-123, 2022 | 13 | 2022 |
| Um estudo sobre confiabilidade de redes e medidas de centralidade em uma rede de co-autoria TF Lyra, CS Oliveira Pesquisa Operacional para o Desenvolvimento 3 (2), 160-172, 2011 | 11 | 2011 |
| Laplacian integral graphs in S (a, b) LS de Lima, NMM de Abreu, CS Oliveira, MAA de Freitas Linear algebra and its applications 423 (1), 136-145, 2007 | 10 | 2007 |
| The non-bipartite graphs with all but two eigenvalues in [–1, 1] LS de Lima, A Mohammadian, CS Oliveira Linear and Multilinear Algebra 65 (3), 526-544, 2017 | 9 | 2017 |
| Aα-spectrum of a firefly graph AE Brondani, CS Oliveira, FAM França, L de Lima Electronic Notes in Theoretical Computer Science 346, 209-219, 2019 | 8 | 2019 |
| On the Graovac-Ghorbani index for bicyclic graphs with no pendant vertices D Pacheco, L de Lima, CS Oliveira arXiv preprint arXiv:2005.02141, 2020 | 7 | 2020 |
| On integral graphs with at most two vertices of degree larger than two LS de Lima, A Mohammadian, CS Oliveira Linear Algebra and its Applications 584, 164-184, 2020 | 7 | 2020 |
| Extremal graphs for the sum of the two largest signless Laplacian eigenvalues CS Oliveira, L de Lima, P Rama, P Carvalho arXiv preprint arXiv:1310.8559, 2013 | 7 | 2013 |
| Q-integral graphs with at most two vertices of degree greater than or equal to three AF Novanta, L de Lima, CS Oliveira Linear algebra and its applications 614, 144-163, 2021 | 5 | 2021 |
| Block-indifference graphs: Characterization, structural and spectral properties NMM de Abreu, CM Justel, L Markenzon, CS Oliveira, CFEM Waga Discrete Applied Mathematics 269, 60-67, 2019 | 5 | 2019 |
| Nordhaus–Gaddum type inequalities for the two largest Laplacian eigenvalues R Grijó, L de Lima, C Oliveira, G Porto, V Trevisan Discrete Applied Mathematics 267, 176-183, 2019 | 5 | 2019 |
| On algebraic connectivity augmentation S Kirkland, CS Oliveira, CM Justel Linear algebra and its applications 435 (10), 2347-2356, 2011 | 5 | 2011 |
| Parameters of connectivity in (a, b)-linear graphs CS Oliveira, NMM de Abreu, AF Pazoto Electronic Notes in Discrete Mathematics 22, 189-193, 2005 | 5 | 2005 |
Leonardo de LimaDepartment of Business, Federal University of ParanáEmail verificata su ufpr.br