40 citations
2 papers
math.KT2004
Unbounded symmetric operators in -homology and the Baum-Connes Conjecture
Hela Bettaieb, Michel Matthey, Alain Valette
Using the unbounded picture of analytical K-homology, we associate a well-defined K-homology class to an unbounded symmetric operator satisfying certain mild technical conditions.…
q-bio.PE2004★ 40 cited
Cluster approximations for probabilistic systems: a new perspective of epidemiological modelling
Thomas Petermann, Paolo De Los Rios
Especially in lattice structured populations, homogeneous mixing represents an inadequate assumption. Various improvements upon the ordinary pair approximation based on a number of…