Books by Joel E. Cohen

Presents a technique for obtaining a partial answer to this elementary question about niche space. This work also discusses other features of real food webs, including the constant ratio of the number of kinds of prey to the number of kinds of predators in food webs that describe a community.

Focuses on generalizing the notion of variation in a set of numbers to the notion of variation in a set of probability distributions. The work collects known ways of comparing stochastic matrices, and then generalizes these, and establishes the relations of implication or equivalence among some.