differential structure

== English == === Alternative forms === differentiable structure === Noun === differential structure (plural differential structures) (topology) A structure defined for a (topological) manifold so that it supports differentiation of functions defined on it. ==== Usage notes ==== For a given natural number n and some k, which may be a non-negative integer or infinity, we speak of an n-dimensional Ck differential structure. === See also === differentiable manifold differential manifold smooth manifold