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math.CO2026
Optimal -locating-dominating codes in infinite triangular grid
Soura Sena Das, Tuomo Lehtilä, Sagnik Sen
We study two variants of location-domination in infinite triangular grids which allow locating up to vertices simultaneously. A locating-dominating code is a dominating…
cs.DM2026
On identifying codes on oriented graphs
Soura Sena Das, Sagnik Sen
This article studies identifying codes in oriented graphs from a computational complexity perspective. We investigate the -Id Code problem, where given a simple graph…
cs.DM2026
On multiplicativity of directed graphs
Soura Sena Das, Moritz Mühlenthaler, Sagnik Sen +1
A graph category is a category with a set of graphs or similar structures (such as, directed graphs, signed graphs, etc.) playing the role of objects, and an appropriate notion of…