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The Big-line-big-clique conjecture is a concept in the field of combinatorics, more specifically in graph theory. It conjectures properties related to the structure and size of certain types of graphs, particularly concerning the relationships between cliques and line graphs. A clique in a graph is a subset of vertices such that every two distinct vertices in the subset are adjacent.

Centroidal Voronoi Tessellation (CVT) is a specific type of Voronoi tessellation where the sites of the Voronoi cells are chosen to be the centroids (centers of mass) of their respective cells. This idea combines the concepts of Voronoi diagrams and centroid calculations to optimize the placement of points in a given space, often leading to more evenly distributed and spatially balanced cell shapes.

The **connective constant** is a term used in statistical physics and combinatorics, particularly in the study of percolation theory and random walks on lattices. It quantifies the growth rate of connected clusters in a random graph or a lattice structure.