Cancellation, elliptic surfaces and the topology of certain four-manifolds.
Cappell-Shaneson's 4-dimensional -cobordism.
Cauchy atlas on the manifold of all maximal solutions of an ODE system.
Cheeger's finiteness theorem for diffeomorphism classes of Riemannian manifolds.
Classification and stable classification of manifolds: some examples.
Complete decomposability of quotients by complex conjugation for real complete intersection surfaces.
Complex hyperbolic manifolds and exotic smooth structures.
Complex structures on the Iwasawa manifold.
Constructions of smooth 4-manifolds.
Convex functions on complete noncompact manifolds : differentiable structure