[en] We present an approach to Jacobi and contact geometry that makes many facts, presented in the literature in an overcomplicated way, much more natural and clear. The key concepts are Kirillov manifolds and linear Kirillov structures, i.e., homogeneous Poisson manifolds and, respectively, homogeneous linear Poisson manifolds. The difference with the existing literature is that the homogeneity of the Poisson structure is related to a principal GL(1,ℝ)-bundle structure on the manifold and not just to a vector field. This allows for working with Jacobi bundle structures on nontrivial line bundles and drastically simplifies the picture of Jacobi and contact geometry. Our results easily reduce to various basic theorems of Jacobi and contact geometry when the principal bundle structure is trivial, while giving new insights into the theory.
Disciplines :
Mathematics
Author, co-author :
Bruce, Andrew ; University of Luxembourg > Faculty of Science, Technology and Communication (FSTC) > Mathematics Research Unit
Grabowska, Katarzyna; University of Warsaw, Poland > Faculty of Physics
Grabowski, Janusz; Polish Academy of Sciences > Institute of Mathematics
External co-authors :
yes
Language :
English
Title :
Remarks on Contact and Jacobi Geometry
Publication date :
26 July 2017
Journal title :
Symmetry, Integrability and Geometry: Methods and Applications
ISSN :
1815-0659
Publisher :
Department of Applied Research, Institute of Mathematics of National Academy of Sciences of Ukraine, Kiev, Ukraine
Volume :
13
Issue :
059
Pages :
22
Peer reviewed :
Peer Reviewed verified by ORBi
Funders :
Polish National Science Centre grant under the contract number DEC- 2012/06/A/ST1/00256