All Stories

  1. Characterization of all graphs with all but two eigenvalues in the interval -2 to 0.

    Article • Discussiones Mathematicae Graph Theory, January 2020, Faculty of Mathematics, Computer Science and Econometrics, University of Zielona Gora

    Prof Leonardo Silva de Lima

  2. On integral graphs with at most two vertices of degree larger than two

    Article • Linear Algebra and its Applications, January 2020, Elsevier

    Prof Leonardo Silva de Lima

  3. Nordhaus–Gaddum type inequalities for the two largest Laplacian eigenvalues

    Article • Discrete Applied Mathematics, August 2019, Elsevier

    Prof Leonardo Silva de Lima

  4. A note on the Nordhaus-Gaddum type inequality to the second largest eigenvalue of a graph

    Article • Applicable Analysis and Discrete Mathematics, January 2017, National Library of Serbia

    Prof Leonardo Silva de Lima

  5. A lower bound for the sum of the two largest signless Laplacian eigenvalues

    Article • Electronic Notes in Discrete Mathematics, November 2016, Elsevier

    Prof Leonardo Silva de Lima

  6. Evaluating temporal aggregation for predicting the sea surface temperature of the Atlantic Ocean

    Article • Ecological Informatics, November 2016, Elsevier

    Prof Leonardo Silva de Lima

  7. A note on the sum of the largest signless Laplacian eigenvalues

    Article • Electronic Notes in Discrete Mathematics, October 2016, Elsevier

    Prof Leonardo Silva de Lima

  8. The non-bipartite graphs with all but two eigenvalues in [–1, 1]

    Article • Linear and Multilinear Algebra, June 2016, Taylor & Francis

    Prof Leonardo Silva de Lima

  9. The clique number and the smallest Q-eigenvalue of graphs

    Article • Discrete Mathematics, June 2016, Elsevier

    Prof Leonardo Silva de Lima

  10. How Reliable Are the Real-World Optical Transport Networks?

    Article • Journal of Optical Communications and Networking, May 2015, Optical Society of America (OSA)

    Prof Leonardo Silva de Lima

  11. Extremal graphs for the sum of the two largest signless Laplacian eigenvalues

    Article • Electronic Journal of Linear Algebra, February 2015, University of Wyoming Libraries

    Prof Leonardo Silva de Lima

  12. On the second largest eigenvalue of the signless Laplacian

    Article • Linear Algebra and its Applications, February 2013, Elsevier

    Prof Leonardo Silva de Lima

  13. Redes de colaboração científica na área de química no Brasil: um estudo baseado nas coautorias dos artigos da revista Química Nova

    Article • Química Nova, January 2012, FapUNIFESP (SciELO)

    Prof Leonardo Silva de Lima

  14. The smallest eigenvalue of the signless Laplacian

    Article • Linear Algebra and its Applications, November 2011, Elsevier

    Prof Leonardo Silva de Lima

  15. Bounds on the

    Article • Linear Algebra and its Applications, April 2010, Elsevier

    Prof Leonardo Silva de Lima

  16. Bounds on the index of the signless Laplacian of a graph

    Article • Discrete Applied Mathematics, February 2010, Elsevier

    Prof Leonardo Silva de Lima

  17. Laplacian integral graphs in S(a,b)

    Article • Linear Algebra and its Applications, May 2007, Elsevier

    Prof Leonardo Silva de Lima