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math.AC2012
Algebraic and geometric aspects of bipartite planar graphs
Maurizio Imbesi, Monica La Barbiera
Let B_{2t} be a bipartite planar graph with an even number of regions. We are able to find bounds for the graded Betti numbers and the projective dimension of the quotient ring ass…
math.AC2012
On the Betti numbers and gracefulness of some planar graphs
Maurizio Imbesi, Monica La Barbiera
In this article bipartite planar graphs St_r are investigated, r the number of their plane regions. Bounds for the graded Betti numbers and the projective dimension of the quotient…