Towards the cosymplectic topology

In this article, the cosymplectic analogue of the symplectic flux homomorphism of a compact connected cosymplectic manifold (M,η,ω)\left(M,\eta ,\omega ) with ∂M=∅\partial M=\varnothing is studied. This is a continuous map with respect to the C0{C}^{0}-metric, whose kernel is connected by smooth ar...

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Main Author: Tchuiaga Stéphane
Format: Article
Language:English
Published: De Gruyter 2023-07-01
Series:Complex Manifolds
Subjects:
Online Access:https://doi.org/10.1515/coma-2022-0151
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author Tchuiaga Stéphane
author_facet Tchuiaga Stéphane
author_sort Tchuiaga Stéphane
collection DOAJ
description In this article, the cosymplectic analogue of the symplectic flux homomorphism of a compact connected cosymplectic manifold (M,η,ω)\left(M,\eta ,\omega ) with ∂M=∅\partial M=\varnothing is studied. This is a continuous map with respect to the C0{C}^{0}-metric, whose kernel is connected by smooth arcs and coincides with the subgroup of all weakly Hamiltonian diffeomorphisms. We discuss the cosymplectic analogue of the Weinstein’s chart, and derive that the group Gη,ω(M){G}_{\eta ,\omega }\left(M) of all cosymplectic diffeomorphisms isotopic to the identity map is locally contractible. A study of an analogue of Polterovich’s regularization process for co-Hamiltonian isotopies follows. Finally, we study Moser’s stability theorems for locally conformal cosymplectic manifolds.
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spelling doaj.art-3062c73d7cfa4cb2afd7a6d10a7d2e652023-07-24T11:18:33ZengDe GruyterComplex Manifolds2300-74432023-07-01101174222710.1515/coma-2022-0151Towards the cosymplectic topologyTchuiaga Stéphane0Department of Mathematics of the University of Buea, South West Region, CameroonIn this article, the cosymplectic analogue of the symplectic flux homomorphism of a compact connected cosymplectic manifold (M,η,ω)\left(M,\eta ,\omega ) with ∂M=∅\partial M=\varnothing is studied. This is a continuous map with respect to the C0{C}^{0}-metric, whose kernel is connected by smooth arcs and coincides with the subgroup of all weakly Hamiltonian diffeomorphisms. We discuss the cosymplectic analogue of the Weinstein’s chart, and derive that the group Gη,ω(M){G}_{\eta ,\omega }\left(M) of all cosymplectic diffeomorphisms isotopic to the identity map is locally contractible. A study of an analogue of Polterovich’s regularization process for co-Hamiltonian isotopies follows. Finally, we study Moser’s stability theorems for locally conformal cosymplectic manifolds.https://doi.org/10.1515/coma-2022-0151locally conformal cosymplectic manifoldsflux homomorphismthe weinstein chartdiffeomorphismsdifferential forms53c2453c1553d0557r17
spellingShingle Tchuiaga Stéphane
Towards the cosymplectic topology
Complex Manifolds
locally conformal cosymplectic manifolds
flux homomorphism
the weinstein chart
diffeomorphisms
differential forms
53c24
53c15
53d05
57r17
title Towards the cosymplectic topology
title_full Towards the cosymplectic topology
title_fullStr Towards the cosymplectic topology
title_full_unstemmed Towards the cosymplectic topology
title_short Towards the cosymplectic topology
title_sort towards the cosymplectic topology
topic locally conformal cosymplectic manifolds
flux homomorphism
the weinstein chart
diffeomorphisms
differential forms
53c24
53c15
53d05
57r17
url https://doi.org/10.1515/coma-2022-0151
work_keys_str_mv AT tchuiagastephane towardsthecosymplectictopology