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math.CO2021
On fractional version of oriented coloring
Sandip Das, Soham Das, Swathy Prabhu +1
We introduce the fractional version of oriented coloring and initiate its study. We prove some basic results and study the parameter for directed cycles and sparse planar graphs. I…
cs.DS2021
On subgraph complementation to H-free graphs
Dhanyamol Antony, Jay Garchar, Sagartanu Pal +3
For a class of graphs, the problem SUBGRAPH COMPLEMENT TO asks whether one can find a subset of vertices of the input graph such that complement…