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math.QA2019
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…
math.DG2019★ 1 cited
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,…