Cyclic Cocycles on Deformation Quantizations and Higher Index Theorems

@inproceedings{Tang2009CyclicCO,
  title={Cyclic Cocycles on Deformation Quantizations and Higher Index Theorems},
  author={Xiaoli Tang},
  year={2009}
}
We construct a nontrivial cyclic cocycle on the Weyl algebra of a symplectic vector space. Using this cyclic cocycle we construct an explicit, local, quasiisomorphism from the complex of differential forms on a symplectic manifold to the complex of cyclic cochains of any formal deformation quantization thereof. We prove an algebraic higher index theorem by computing the pairing between such cyclic cocycles and the K-theory of the formal deformation quantization. Furthermore, we extend this… CONTINUE READING

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