An Inhomogeneous Lambda-Determinant Philippe Di Francesco DOI: https://doi.org/10.37236/2756 Keywords: alternating sign matrices, discrete integrable systems, cluster algebra, networks Abstract We introduce a multi-parameter generalization of the Lambda-determinant of Robbins and Rumsey, based on the cluster algebra with coefficients attached to a T-system recurrence. We express the result as a weighted sum over alternating sign matrices. PDF Published 2013-08-16 Issue Volume 20, Issue 3 (2013) Article Number P19