2 papers
cs.DM2026
Some polynomial classes for the acyclic orientation with parity constraint problem
Sylvain Gravier, Matthieu Petiteau, Isabelle Sivignon
We study the problem of finding an acyclic orientation of an undirected graph with constrained in-degree parities specified by a subset T of vertices. An orientation is called T -o…
cs.DM2025
Note about the complexity of the acyclic orientation with parity constraint problem
Sylvain Gravier, Matthieu Petiteau, Isabelle Sivignon
Let be a connected graph, and let in be a subset of vertices. An orientation of is called -odd if any vertex has odd in-degree if and only if…