Why Negative Ollivier-Ricci Curvature is a Sicegnature of Malignancy: The Geometric Eviden.
The Geometric Signatures of Malignancy: Why Negative Ollivier-Ricci Curvature Indicates Invasive Tumor Borders. Abstract The tumor microenvironment is a complex and heterogeneous system of interacting cells and for accurate characterization of its structure, advanced mathematical paradigms are needed. The emerging field of spatial omics enables molecular expression to be profiled in their natural geometric context and thus unravels complex biological tissue architectures. In this paper, the authors explore the theoretical and experimental explanation why negative Ollivier-Ricci curvature is a good mathematical predictor for invasive tumor borders. We show that the nature of the geometry of the graph reveals structural bottlenecks and boundaries between different microenvironmental domains intrinsically as negative curvature. Finally, we suggest a comprehensive methodological approach that combines discrete differential geometry and topological data analysi...