Výsledky vyhledávání - "Anna Kiesenhofer"

Autor: Roisin Braddell, Anna Kiesenhofer, Eva Miranda

Publikováno v: UPCommons. Portal del coneixement obert de la UPC
Universitat Politècnica de Catalunya (UPC)

In this article, motivated by the study of symplectic structures on manifolds with boundary and the systematic study of $b$-symplectic manifolds started in [12], we prove a slice theorem for Lie group actions on $b$-symplectic manifolds.
Comment

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::cf0efef22621f8614a9f212f139e8c20
https://doi.org/10.1112/blms.12713

Zobrazit plný text záznamu

$b$-Structures on Lie groups and Poisson reduction

Autor: Roisin Braddell, Anna Kiesenhofer, Eva Miranda

Publikováno v: UPCommons. Portal del coneixement obert de la UPC
Universitat Politècnica de Catalunya (UPC)

Motivated by the group of Galilean transformations and the subgroup of Galilean transformations which fix time zero, we introduce the notion of a $b$-Lie group as a pair $(G,H)$ where $G$ is a Lie group and $H$ is a codimension-one Lie subgroup. Such

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::21010b56c8756270eff7762981df3ae5
http://arxiv.org/abs/2010.04770

Zobrazit plný text záznamu

Small data global regularity for half-wave maps in $n = 4$ dimensions

Autor: Joachim Krieger, Anna Kiesenhofer

Publikováno v: Communications in Partial Differential Equations
article-version (VoR) Version of Record

We prove that the half-wave maps problem on $\mathbb{R}^{4+1}$ with target $S^2$ is globally well-posed for smooth initial data which are small in the critical $l^1$ based Besov space. This is a formal analogue of the result for wave maps by Tataru.

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::cfa214370cb62716c8ea6b023f6ef961
http://arxiv.org/abs/1904.12709

Zobrazit plný text záznamu

Non-commutative integrable systems on $b$-symplectic manifolds

Autor: Eva Miranda, Anna Kiesenhofer

Publikováno v: Recercat. Dipósit de la Recerca de Catalunya
instname
UPCommons. Portal del coneixement obert de la UPC
Universitat Politècnica de Catalunya (UPC)

In this paper we study noncommutative integrable systems on b-Poisson manifolds. One important source of examples (and motivation) of such systems comes from considering noncommutative systems on manifolds with boundary having the right asymptotics o

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::255763a611e8b1fe75f9fefbb5cec6a3
http://arxiv.org/abs/1606.02605

Zobrazit plný text záznamu

Action-angle variables and a KAM theorem for b-Poisson manifolds

Autor: Anna Kiesenhofer, Geoffrey Scott, Eva Miranda

Publikováno v: UPCommons. Portal del coneixement obert de la UPC
Universitat Politècnica de Catalunya (UPC)
Recercat. Dipósit de la Recerca de Catalunya
instname

In this article we prove an action-angle theorem for b-integrable systems on b-Poisson manifolds improving the action-angle theorem contained in [LMV11] for general Poisson manifolds in this setting. As an application, we prove a KAM-type theorem for

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::8d4b4fd24399818235ca9ed54ecb9460
http://hdl.handle.net/2117/104923

Zobrazit plný text záznamu

Examples of integrable and non-integrable systems on singular symplectic manifolds

Autor: Eva Miranda, Anna Kiesenhofer, Amadeu Delshams

Publikováno v: Journal of Geometry and Physics
Journal of Geometry and Physics, Elsevier, 2015, 115, pp.89-97. ⟨10.1016/j.geomphys.2016.06.011⟩
Recercat. Dipósit de la Recerca de Catalunya
instname
UPCommons. Portal del coneixement obert de la UPC
Universitat Politècnica de Catalunya (UPC)

We present a collection of examples borrowed from celestial mechanics and projective dynamics. In these examples symplectic structures with singularities arise naturally from regularization transformations, Appell's transformation or classical change

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::e1769adb435ab74def7dfdf830d6ee9b
https://hal.sorbonne-universite.fr/hal-02448225/file/1512.08293.pdf

Zobrazit plný text záznamu

Cotangent models of integrable systems

Autor: Anna Kiesenhofer, Eva Miranda

Publikováno v: Recercat. Dipósit de la Recerca de Catalunya
instname
Communications in Mathematical Physics
Communications in Mathematical Physics, Springer Verlag, 2016
UPCommons. Portal del coneixement obert de la UPC
Universitat Politècnica de Catalunya (UPC)

We associate cotangent models to a neighbourhood of a Liouville torus in symplectic and Poisson manifolds focusing on a special class called $b$-Poisson/$b$-symplectic manifolds. The semilocal equivalence with such models uses the corresponding actio

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::bfccd61c366fa8442761059e9e9e7307
http://hdl.handle.net/2117/90069

Zobrazit plný text záznamu

Vyhledávací nástroje:

Upřesnit hledání