Isotopy

Not to be confused with isotropy.

Isotopy may refer to:

Mathematics

• Homotopy#Isotopy, a continuous path of homeomorphisms connecting two given homeomorphisms is an isotopy of the two given homeomorphisms in homotopy
• Regular isotopy of a link diagram, an equivalence relation in knot theory
• Ambient isotopy (or h-isotopy), two subsets of a fixed topological space are ambient isotopic if there is a homeomorphism, isotopic to the identity map of the ambient space, which carries one subset to the other
• Isotopy of quasigroups. See Quasigroup#Homotopy and isotopy.
• Isotopy of loops, a triple of maps with certain properties.
• Isotopy of an algebra, a triple of maps with certain properties.

Semiotics

• Isotopy, a repetition of a basic meaning-trait (seme); the direction taken by an interpretation of the text

See also

• Isotopic (disambiguation)
• Isotope (disambiguation)