Main Subjects = 05C50 Graphs and linear algebra (matrices, eigenvalues, etc.)
Number of Articles: 28
1. A note on some lower bounds of the Laplacian energy of a graph

Volume 8, Issue 2, June 2019, Pages 13-19

10.22108/toc.2019.115269.1616

Igor Z. Milovanovic; M. Matejic; P. Milosevic; Emina I. Milovanovic; Akbar Ali


2. Iota energy of weighted digraphs

Volume 7, Issue 3, September 2018, Pages 55-73

10.22108/toc.2018.109248.1546

Sumaira Hafeez; Mehtab Khan


3. $\mathcal{B}$-Partitions, determinant and permanent of graphs

Volume 7, Issue 3, September 2018, Pages 37-54

10.22108/toc.2017.105288.1508

Ranveer Singh; Ravindra B. Bapat


5. Products of graphs and Nordhaus-Gaddum type inequalities for eigenvalues

Volume 7, Issue 1, March 2018, Pages 31-36

10.22108/toc.2017.21474

Nastaran Keyvan; Farhad Rahmati


6. On the skew spectral moments of graphs

Volume 6, Issue 1, March 2017, Pages 47-54

10.22108/toc.2017.20737

Fatemeh Taghvaee; Gholam Hossein Fath-Tabar


7. Skew Randi'c matrix and skew Randi'c energy

Volume 5, Issue 1, March 2016, Pages 1-14

10.22108/toc.2016.9513

Ran Gu; Fei Huang; Xueliang Li


8. Skew equienergetic digraphs

Volume 5, Issue 1, March 2016, Pages 15-23

10.22108/toc.2016.9372

Harishchandra S. Ramane; K. Channegowda Nandeesh; Ivan Gutman; Xueliang Li


10. A classification of finite groups with integral bi-Cayley graphs

Volume 4, Issue 4, December 2015, Pages 55-61

10.22108/toc.2015.7807

Majid Arezoomand; Bijan Taeri


11. On Laplacian-energy-like invariant and incidence energy

Volume 4, Issue 3, September 2015, Pages 25-35

10.22108/toc.2015.7581

Shariefuddin Pirzada; Hilal A. Ganie


12. The second immanant of some combinatorial matrices

Volume 4, Issue 2, June 2015, Pages 23-35

10.22108/toc.2015.6237

R. B. Bapat; Sivaramakrishnan Sivasubramanian


13. Skew-spectra and skew energy of various products of graphs

Volume 4, Issue 2, June 2015, Pages 13-21

10.22108/toc.2015.6417

Xueliang Li; Huishu Lian


14. Note on the skew energy of oriented graphs

Volume 4, Issue 1, March 2015, Pages 57-61

10.22108/toc.2015.6117

Jun He; Ting-Zhu Huang


15. Randic incidence energy of graphs

Volume 3, Issue 4, December 2014, Pages 1-9

10.22108/toc.2014.5573

Ran Gu; Fei Huang; Xueliang Li


16. General Randic matrix and general Randic energy

Volume 3, Issue 3, September 2014, Pages 21-33

10.22108/toc.2014.5451

Ran Gu; Fei Huang; Xueliang Li


17. On the eigenvalues of firefly graphs

Volume 3, Issue 3, September 2014, Pages 1-9

10.22108/toc.2014.5145

W. X. Hong; L. H. You


18. Connected graphs cospectral with a friendship graph

Volume 3, Issue 2, June 2014, Pages 17-20

10.22108/toc.2014.4975

Alireza Abdollahi; Shahrooz Janbaz


20. Graphs cospectral with a friendship graph or its complement

Volume 2, Issue 4, December 2013, Pages 37-52

10.22108/toc.2013.3621

Alireza Abdollahi; Shahrooz Janbaz; Mohammad Reza Oboudi


21. Note on degree Kirchhoff index of graphs

Volume 2, Issue 3, September 2013, Pages 43-52

10.22108/toc.2013.3288

Mardjan Hakimi-Nezhaad; Ali Reza Ashrafi; Ivan Gutman


22. Energy of binary labeled graphs

Volume 2, Issue 3, September 2013, Pages 53-67

10.22108/toc.2013.3292

Pradeep G. Bhat; Sabitha D'Souza


24. New skew Laplacian energy of simple digraphs

Volume 2, Issue 1, March 2013, Pages 27-37

10.22108/toc.2013.2833

Qingqiong Cai; Xueliang Li; Jiangli Song


25. Determinants of adjacency matrices of graphs

Volume 1, Issue 4, December 2012, Pages 9-16

10.22108/toc.2012.2041

Alireza Abdollahi