CONNECTED SPACE
Connected space 29 languages Article Talk Read Edit View history From Wikipedia, the free encyclopedia For other uses, see Connection (disambiguation) . Connected and disconnected subspaces of R ² From top to bottom: red space A , pink space B , yellow space C and orange space D are all connected spaces , whereas green space E (made of subsets E 1 , E 2 , E 3 , and E 4 ) is disconnected . Furthermore, A and B are also simply connected ( genus 0), while C and D are not: C has genus 1 and D has genus 4. In topology and related branches of mathematics , a connected space is a topological space that cannot be represented as the union of two or more disjoint non-empty open subsets . Connectedness is one of the principal topological pro...