Author: Das, Kinkar Ch.

Das, Kinkar Ch.; Liu, Muhuo: Quotient of spectral radius, (signless) Laplacian spectral radius and clique number of graphs. (English). Czechoslovak Mathematical Journal, vol. 66 (2016), issue 3, pp. 1039-1048
Bhatti, Faqir M.; Das, Kinkar Ch.; Ahmed, Syed A.: On the energy and spectral properties of the he matrix of hexagonal systems. (English). Czechoslovak Mathematical Journal, vol. 63 (2013), issue 1, pp. 47-63

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