4 citations · 7 across the 3 of their papers we have counts for
6 papers
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…
Invariant Star Products of Wick Type: Classification and Quantum Momentum Mappings
Michael F. Mueller-Bahns, Nikolai Neumaier
We extend our investigations on -invariant Fedosov star products and quantum momentum mappings \cite{MN03a} to star products of Wick type on pseudo-Kähler manifolds. S…
Some Remarks on {}-invariant Fedosov Star Products and Quantum Momentum Mappings
Michael Frank Müller, Nikolai Neumaier
In these notes we consider the usual Fedosov star product on a symplectic manifold emanating from the fibrewise Weyl product , a symplectic torsion free connection $…
Local -Euler Derivations and Deligne's Characteristic Class of Fedosov Star Products and Star Products of Special Type
Nikolai Neumaier
In this paper we explicitly construct local -Euler derivations $\mathsf E_α= ν\partial_ν+ \Lie{ξ_α} + \mathsf D_α$, where the are local, conformally symplectic vector fiel…
On representations of star product algebras over cotangent spaces on Hermitian line bundles
Martin Bordemann, Nikolai Neumaier, Markus J. Pflaum +1
For every formal power series of closed two-forms on a manifold and every value of an ordering parameter we construct a concrete star produ…
Homogeneous Fedosov Star Products on Cotangent Bundles II: GNS Representations, the WKB Expansion, and Applications
Martin Bordemann, Nikolai Neumaier, Stefan Waldmann
This paper is part II of a series of papers on the deformation quantization on the cotangent bundle of an arbitrary manifold . For certain homogeneous star products of Weyl orde…