Acharya, B. D.; Gill, M. K.; Patwardhan, G. A. Quasicospectral graphs and digraphs. (English) Zbl 0556.05048 Mathematical modelling, Proc. Symp., Allahabad 1982, M. R. I. Lect. Notes Appl. Math. 1, 133-144 (1984). Reviewer: A.Schwenk MSC: 05C50 05C20 PDFBibTeX XML
Gill, Mukhtiar Kaur A note concerning Acharya’s conjecture on a spectral measure of structural balance in a social system. (English) Zbl 0476.05073 Combinatorics and graph theory, Proc. Symp., Calcutta 1980, Lect. Notes Math. 885, 266-271 (1981). MSC: 05C99 05C50 PDFBibTeX XML