activity
19962023
most citedHomogeneous Fedosov Star Products on Cotangent Bundles I: Weyl and Standard Ordering with Differential Operator Representation

109 citations · 546 across the 60 of their papers we have counts for

collaborators

67 papers

math.CV2023

Strict Wick-type deformation quantization on Riemann surfaces: Rigidity and Obstructions

Daniela Kraus, Oliver Roth, Sebastian Schleissinger +1

Let be a hyperbolic Riemann surface. We study a convergent Wick-type star product on which is induced by the canonical convergent star product $\star_{\mathbb{D}}…

math.QA2021

Convergent Star Products on Cotangent Bundles of Lie Groups

Michael Heins, Oliver Roth, Stefan Waldmann

For a connected real Lie group we consider the canonical standard-ordered star product arising from the canonical global symbol calculus based on the half-commutator connection…

math-ph2021★ 2 cited

Classical KMS Functionals and Phase Transitions in Poisson Geometry

Nicolò Drago, Stefan Waldmann

We study the convex cone of not necessarily smooth measures satisfying the classical KMS condition within the context of Poisson geometry. We discuss the general properties of KMS…

math.DG2020★ 2 cited

A Serre-Swan Theorem for Coisotropic Algebras

Marvin Dippell, Felix Menke, Stefan Waldmann

Coisotropic algebras are used to formalize coisotropic reduction in Poisson geometry as well as in deformation quantization and find applications in various other fields as well. I…

math.QA2020

Deformation and Hochschild Cohomology of Coisotropic Algebras

Marvin Dippell, Chiara Esposito, Stefan Waldmann

Coisotropic algebras consist of triples of algebras for which a reduction can be defined and unify in a very algebraic fashion coisotropic reduction in several settings. In this pa…

math.SG2020

Morita equivalence of formal Poisson structures

Henrique Bursztyn, Inocencio Ortiz, Stefan Waldmann

We extend the notion of Morita equivalence of Poisson manifolds to the setting of {\em formal} Poisson structures, i.e., formal power series of bivector fields $π=π_0 + λπ_1 +\cdot…