C*-Algebra approach to the index theory of boundary value problems

C*-Algebras over Topological Spaces: The Bootstrap Class

C*-categories, Groupoid Actions, Equivariant KK-theory, and the Baum-Connes Conjecture

Calabi-Yau algebras and superpotentials

Categorical aspects of bivariant K-theory

Categorical Foundations for K-Theory

Cech approximation to the Brown-Gersten spectral sequence

Character formulæ and GKRS multiplets in equivariant K-theory

Characters of Fredholm modules and a problem of Connes

Chen/Ruan orbifold cohomology of the Bianchi groups

Chern character for the Schwartz algebra of p-adic GL(n)

Chern character for totally disconnected groups

Chern character for twisted complexes

Chern character for twisted K-theory of orbifolds

Chern Classes in Alexander-Spanier Cohomology

Chern classes on differential K-theory

Clifford modules and invariants of quadratic forms

Clifford modules and twisted K-theory

Closed manifolds with transcendental L2-Betti numbers

Coactions on Hochschild Homology of Hopf-Galois Extensions and Their Coinvariants