Existence of Gibbsian point processes with geometry-dependent interactions

David Dereudre (1) , Rémy Drouilhet (2) , Hans Otto Georgii (3)

1 LAMAV - Laboratoire de Mathématiques et leurs Applications de Valenciennes - EA 4015
2 FIGAL - Fiabilité et Géométrie Aléatoire
3 LMU - Mathematisches Institut [München]

We establish the existence of stationary Gibbsian point processes for interactions that act on hyperedges between the points. For example, such interactions can depend on Delaunay edges or triangles, cliques of Voronoi cells or clusters of k-nearest neighbors. The classical case of pair interactions is also included. The basic tools are an entropy bound and stationarity.

Mots clés: Gibbs measure; Hypergraph; Delaunay mosaic; Voronoi tessellation; Entropy

Domaines: Statistiques [math.ST]; Théorie [stat.TH]

David Dereudre, Rémy Drouilhet, Hans Otto Georgii. Existence of Gibbsian point processes with geometry-dependent interactions. Probability Theory and Related Fields, 2012, 153 (3-4), pp.643-670. ⟨10.1007/s00440-011-0356-5⟩. ⟨hal-00850422⟩