Introduces the ideal I_{G→H} of weak graph homomorphisms and characterizes graphs G and H where its powers have linear resolution, while studying unmixedness, Cohen-Macaulayness, projective dimension and Castelnuovo-Mumford regularity.
Navarra, graph-homomorphism-ideals (Version 1.0.0) [Computer software]
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An algebraic study of ideals of weak graph homomorphisms
Introduces the ideal I_{G→H} of weak graph homomorphisms and characterizes graphs G and H where its powers have linear resolution, while studying unmixedness, Cohen-Macaulayness, projective dimension and Castelnuovo-Mumford regularity.