Sure, see (2010) A curved Brunn-Minkowski inequality on the discrete hypercube, Or: What is the Ricci curvature of the discrete hypercube? http://www.yann-olli

Sure, see (2010) A curved Brunn-Minkowski inequality on the discrete hypercube, Or: What is the Ricci curvature of the discrete hypercube? http://www.yann-ollivier.org/rech/publs/cube.pdf http://www.yann-ollivier.org/rech/publs/cube.pdf Or this: (2011) A visual introduction to Riemannian curvatures and some discrete generalizations http://www.yann-ollivier.org/rech/publs/visualcurvature.pdf http://www.yann-ollivier.org/rech/publs/visualcurvature.pdf Taken from the site of Yann Ollivier http://www.yann-ollivier.org/rech/index http://www.yann-ollivier.org/rech/index