Canonical realizations of Lie algebras associated with foliated coadjoint orbits
Jochen Dittmann, Gerd Rudolph (1985)
Annales de l'I.H.P. Physique théorique
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Jochen Dittmann, Gerd Rudolph (1985)
Annales de l'I.H.P. Physique théorique
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François Labourie (2007)
Publications Mathématiques de l'IHÉS
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This article relates representations of surface groups to cross ratios. We first identify a connected component of the space of representations into PSL(,ℝ) – known as the -– to a subset of the set of cross ratios on the boundary at infinity of the group. Similarly, we study some representations into associated to cross ratios and exhibit a “character variety” of these representations. We show that this character variety contains all-Hitchin components as well as the set of negatively...
Karsten Grove, Hermann Karcher (1973)
Compositio Mathematica
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Dennis Sullivan (1976)
Publications Mathématiques de l'IHÉS
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Gilles Chatelet, Harold Rosenberg (1974)
Publications Mathématiques de l'IHÉS
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Aubin Arroyo, Adolfo Guillot (2010)
Annales de la faculté des sciences de Toulouse Mathématiques
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We study germs of Lie algebras generated by two commuting vector fields in manifolds that are in the sense of Palais (those which do not present any evident obstruction to be the local model of an action of ). We study three particular pairs of homogeneous quadratic commuting vector fields (in , and ) and study the maximal Lie algebras generated by commuting vector fields whose 2-jets at the origin are the given homogeneous ones. In the first case we prove that the quadratic algebra...
Izu Vaisman (1989)
Publicacions Matemàtiques
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The paper is an exposition of basic known local and global results on Lagrangian foliations such as the Theorem of Darboux-Lie, Weinstein, Arnold-Liouville, a global characterization of cotangent bundles, higher order Maslov classes, etc.