Showing math.KTShow all
2 papers · 1 filter
math.KT2005
An algebraic index theorem for orbifolds
Markus J. Pflaum, Hessel Posthuma, Xiang Tang
Using the concept of a twisted trace density on a cyclic groupoid, a trace is constructed on a formal deformation quantization of a symplectic orbifold. An algebraic index theorem…
math.KT2004★ 4 cited
Homology of formal deformations of proper etale Lie groupoids
Nikolai Neumaier, Markus J. Pflaum, Hessel Posthuma +1
In this article, the cyclic homology theory of formal deformation quantizations of the convolution algebra associated to a proper etale Lie groupoid is studied. We compute the Hoch…