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math.CO2001
Quadratic Orlik-Solomon algebras of graphic matroids
Raul Cordovil, David Forge
In this note we introduce a sufficient condition for the Orlik-Solomon algebra associated to a matroid M to be l-adic and we prove that this condition is necessary when M is binary…
math.AT2001
Groebner and diagonal bases in Orlik-Solomon type algebras
Raul Cordovil, David Forge
The Orlik-Solomon algebra of a matroid M is the quotient of the exterior algebra on the points by the ideal I(M) generated by the boundaries of the circuits of the matroid. There i…