The resonance varieties are cohomological invariants that are studied in a variety of
topological, combinatorial, and geometric contexts. We discuss their scheme structure in a …

Proposition If f: M Ñ N is a morphism of N n-graded S-modules, and M and N are square-free
modules, then kerpf q and cokerpf q are also square-free. Moreover, if 0 Ñ M1 Ñ M Ñ M2 Ñ 0 …

Resonance schemes and Hilbert series for Koszul modules Alex Suciu Page 1 Resonance
schemes and Hilbert series for Koszul modules Alex Suciu Northeastern University MIT–Harvard–MSR …