2 citations · 3 across the 3 of their papers we have counts for
6 papers
The Homotopy Class of twisted -morphisms
Andreas Kraft, Jonas Schnitzer
The global formality of Dolgushev depends on the choice of a torsion-free covariant derivative. We prove that the globalized formalities with respect to two different covariant der…
The Strong Homotopy Structure of Poisson Reduction
Chiara Esposito, Andreas Kraft, Jonas Schnitzer
In this paper we propose a reduction scheme for multivector fields phrased in terms of -morphisms. Using well-know geometric properties of the reduced manifolds we perfor…
Characteristic (Fedosov-)class of a twist constructed by Drinfel'd
Jonas Schnitzer
In a seminal paper Drinfel'd explained how to associate to every classical r-matrix for a Lie algebra $\lie g$ a twisting element based on $\mathcal{U}(\lie g)[[\hbar]]$, or equiva…
Normal Forms for Dirac-Jacobi bundles and Splitting Theorems for Jacobi Structures
Jonas Schnitzer
The aim of this paper is to prove a normal form Theorem for Dirac-Jacobi bundles using the recent techniques from Bursztyn, Lima and Meinrenken. As the most important consequence,…
A proof of Tsygan's formality conjecture for Hamiltonian actions
Chiara Esposito, Niek de Kleijn, Jonas Schnitzer
In this short note we prove an equivariant version of the formality of multidiffirential operators for a proper Lie group action. More precisely, we show that the equivariant Hochs…
Regular Jacobi Structures and Generalized Contact Bundles
Jonas Schnitzer
A Jacobi structure on a line bundle is weakly regular if the sharp map has constant rank. A generalized contact bundle with regular Jacobi st…