Proper orientation of cacti

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Natural Sciences, Mathematics, Combinatorics +11

Problems from the world surrounding perfect graphs

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Natural Sciences, Computer Science, Mathematics +10

The complexity of the proper orientation number

Arash Ahadi, Ali Dehghan · Information Processing Letters · 2013 · 28 citations · Full text

Computing, Computer Science, Mathematics +3

On the proper orientation number of bipartite graphs

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Natural Sciences, Mathematics, Combinatorics +5