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cs.DM2026
Mixed Unit Interval Bigraphs : A Characterization
Ashok Kumar Das, Rajkamal Sahu, Amina Khatun
The class of intersection bigraphs of unit intervals of the real line whose ends may be open or closed is called a class of mixed unit interval bigraphs. This class of bigraphs is…
cs.DM2026
Vertex ordering characterizations of interval r-graphs
Indrajit Paul, Ashok Kumar Das
An r-partite graph is an interval r-graph if corresponding to each vertex we can assign an interval of the real line such that two vertices u and v of different partite sets are ad…