Back Lavdimensional topologi Danish Niedrigdimensionale Topologie German Topologie en basses dimensions French Alacsony dimenziós topológia Hungarian Topologia in dimensione bassa Italian 低次元トポロジー Japanese Laag-dimensionale topologie Dutch Topologia de baixa dimensão Portuguese Маломерная топология Russian 低維拓撲 Chinese
In mathematics, low-dimensional topology is the branch of topology that studies manifolds, or more generally topological spaces, of four or fewer dimensions. Representative topics are the structure theory of 3-manifolds and 4-manifolds, knot theory, and braid groups. This can be regarded as a part of geometric topology. It may also be used to refer to the study of topological spaces of dimension 1, though this is more typically considered part of continuum theory.