Descriptive Set Theory - Borel Equivalence Relations

A contemporary area of research in descriptive set theory studies Borel equivalence relations. A Borel equivalence relation on a Polish space X is a Borel subset of that is an equivalence relation on X.

Read more about this topic:  Descriptive Set Theory

Famous quotes containing the word relations:

    “The principle that human nature, in its psychological aspects, is nothing more than a product of history and given social relations removes all barriers to coercion and manipulation by the powerful.”
    —Noam Chomsky (b. 1928)