Configuration complexes and a variant of Cathelineau's complex in weight 3
arXiv:1205.3864
Abstract
In this paper we consider the Grassmannian complex of projective configurations in weight 2 and 3, and Cathelineau's infinitesimal polylogarithmic complexes. Our main result is a morphism of complexes between the Grassmannian complex and the associated infinitesimal polylogarithmic complex. In order to establish this connection we introduce an -vector space , which is an intermediate structure between a $\varmathbb{Z}$-module (scissors congruence group for ) and Cathelineau's -vector space which is an infinitesimal version of it. The structure of is also infinitesimal but it has the advantage of satisfying similar functional equations as the group . We put this in a complex to form a variant of Cathelineau's infinitesimal complex for weight 2.