Back Deskriptive Mengenlehre German Teoría descriptiva de conjuntos Spanish نظریه توصیفی مجموعهها Persian Théorie descriptive des ensembles French Teoria descrittiva degli insiemi Italian 記述集合論 Japanese 기술적 집합론 Korean Beschrijvende verzamelingenleer Dutch Opisowa teoria mnogości Polish Teoria descritiva de conjuntos Portuguese
In mathematical logic, descriptive set theory (DST) is the study of certain classes of "well-behaved" subsets of the real line and other Polish spaces. As well as being one of the primary areas of research in set theory, it has applications to other areas of mathematics such as functional analysis, ergodic theory, the study of operator algebras and group actions, and mathematical logic.