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math.CO2025
Characterization of Erdös matrices by their zero entries
Priyanka Karmakar, Hariram Krishna, Souvik Pal +1
An Erdös matrix is a bistochastic matrix whose sum of squares of entries (Frobenius norm squared) equals its maxtrace (maximum of all the -traces for permutations 's). We…
math.RT2025
Weights and characters of highest weight modules
Souvik Pal, G. Krishna Teja
Let be any Borcherds-Kac-Moody -Lie algebra (BKM LA) for BKM-Cartan matrix , with Cartan subalgebra . Let denote a h…