  We exhibit a curious link between the Quadratic Orthogonal Bisectional
Curvature, combinatorics, and distance geometry. The Weitzenb\"ock curvature
operator, acting on real (1,1)--forms, is realized as the Dirichlet energy of a
finite graph, weighted by a matrix of the curvature. These results also
illuminate the difference in the nature of the Quadratic Orthogonal Bisectional
Curvature and the Real Bisectional Curvature.
