Official Contact: hitesh_kumar@sfu.ca (note the underscore)
Permanent Contact: hitesh.kumar.math@gmail.com
Google Scholar Link: Hitesh Kumar
Born and raised in India. Completed 5-year Integrated M.Sc. in Mathematics from National Institute of Science Education and Research (NISER), Bhubaneswar. My M.Sc. thesis was supervised by Prof. Kamal Lochan Patra. Recently, defended my Ph.D. in Mathematics at Simon Fraser University, Vancouver. My Ph.D. thesis was supervised by Prof. Bojan Mohar. My primary research interest lies in Discrete Mathematics. I use tools from various areas of mathematics to solve problems about graphs. My recent papers have focused on graph eigenvalues.
Submitted/Preprints
Hitesh Kumar and Shivaramakrishna Pragada. Energy and independence number, 2026. Link: [arXiv]
Hitesh Kumar, Bojan Mohar, and Shivaramakrishna Pragada. An improved bound for the strong clique index of graphs, 2026. Link: [arXiv]
M. Rajesh Kannan, Hitesh Kumar, and Shivaramakrishna Pragada. Localized Turán-type inequalities for Q-index, 2026. Link: [arXiv]
Hitesh Kumar, Lele Liu, Hermie Monterde, Shivaramakrishna Pragada, and Michael Tait. Maximum spectral sum of graphs, 2026. Link: [arXiv]
Hitesh Kumar, Bojan Mohar, Shivaramakrishna Pragada, and Hanmeng Zhan. Convex combination of first and second eigenvalues of trees, 2026. Link: [arXiv]
M. Rajesh Kannan, Hitesh Kumar, and Shivaramakrishna Pragada. Localization of spectral Turán-type theorems, 2026. Link: [arXiv]
Alexander Clow, Hitesh Kumar, and Shivaramakrishna Pragada. Improved Bounds for the Ultimate Independence Ratio of Odd Wheels, 2025. Link: [arXiv]
Saieed Akbari, Hitesh Kumar, Bojan Mohar, Shivaramakrishna Pragada, and Shengtong Zhang. Refinement of a conjecture on positive square energy of graphs, 2025. Link: [arXiv]
Published
Saieed Akbari, Clive Elphick, Hitesh Kumar, Shivaramakrishna Pragada, and Quanyu Tang. A new conjecture on the inertia of graphs. Discrete Math., 349(4):Paper No. 114953, 14, 2026. Link: [arXiv, Journal]
Saieed Akbari, Hitesh Kumar, Bojan Mohar, and Shivaramakrishna Pragada. Vertex partitioning and p-energy of graphs. Linear Algebra Appl., 724:96–107, 2025. Link: [arXiv, Journal]
Saieed Akbari, Hitesh Kumar, Bojan Mohar, and Shivaramakrishna Pragada. A Linear Lower Bound for the Square Energy of Graphs. Electron. J. Combin., 32(3):P3.53, 2025. Link: [arXiv, Journal]
Hitesh Kumar and Shivaramakrishna Pragada. Bollobás - Nikiforov Conjecture for graphs with not so many triangles. Linear Algebra Appl., 727:1–9, 2025. Link: [arXiv, Journal]
Hitesh Kumar, Bojan Mohar, Shivaramakrishna Pragada, and Hanmeng Zhan. On the second largest adjacency eigenvalue of trees with given diameter. Linear Multilinear Algebra, 73(13):2944–2972, 2025. Link: [arXiv, Journal]
Hitesh Kumar, Bojan Mohar, Shivaramakrishna Pragada, and Hanmeng Zhan. Subdivision and graph eigenvalues. Linear Algebra Appl., 710:336–355, 2025. Link: [arXiv, Journal]
Hitesh Kumar, Kamal Lochan Patra, and Binod Kumar Sahoo. Proper divisor graph of a positive integer. Integers, 21:Paper No. A65, 21, 2021. Link: [arXiv, Journal]
Manoj Gupta, Hitesh Kumar, and Neeldhara Misra. On the complexity of optimal matching reconfiguration. In SOFSEM 2019: theory and practice of computer science, volume 11376 of Lecture Notes in Comput. Sci., pages 221–233. Springer, Cham, 2019. Link: [Journal]