Ray–Dutt twist

The Ray–Dutt twist is a concept in the field of differential geometry and is specifically associated with the study of contact structures and their properties. It relates to a particular construction or modification of contact structures on odd-dimensional manifolds. In essence, the Ray–Dutt twist provides a way to generate new contact structures from existing ones. The twist involves manipulating a contact structure by using a certain type of isotopy or deformation, preserving certain geometric properties while altering others.