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Non-Hamiltonian Actions and Lie-Algebra Cohomology of Vector Fields

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dc.contributor.author Ferreiro Pérez, R.
dc.contributor.author Muñoz Masqué, J.
dc.date.accessioned 2019-02-19T17:50:20Z
dc.date.available 2019-02-19T17:50:20Z
dc.date.issued 2009
dc.identifier.citation Non-Hamiltonian Actions and Lie-Algebra Cohomology of Vector Fields / R. Ferreiro Pérez, J. Muñoz Masqué // Symmetry, Integrability and Geometry: Methods and Applications. — 2009. — Т. 5. — Бібліогр.: 8 назв. — англ. uk_UA
dc.identifier.issn 1815-0659
dc.identifier.other 2000 Mathematics Subject Classification: 58D15; 17B56; 22E65; 53D20; 53D30; 58A20
dc.identifier.uri http://dspace.nbuv.gov.ua/handle/123456789/149158
dc.description.abstract Two examples of Diff⁺S¹-invariant closed two-forms obtained from forms on jet bundles, which does not admit equivariant moment maps are presented. The corresponding cohomological obstruction is computed and shown to coincide with a nontrivial Lie algebra cohomology class on H²(X(S¹)). uk_UA
dc.description.sponsorship This paper is a contribution to the Special Issue “Elie Cartan and Differential Geometry”. Part of this work started during the stay of the first author at Utah State University under the advice of Professor Ian Anderson. The computations were first obtained by using MAPLE package “Vessiot”. Supported by Ministerio de Ciencia e Innovaci´on of Spain under grant #MTM2008–01386. uk_UA
dc.language.iso en uk_UA
dc.publisher Інститут математики НАН України uk_UA
dc.relation.ispartof Symmetry, Integrability and Geometry: Methods and Applications
dc.title Non-Hamiltonian Actions and Lie-Algebra Cohomology of Vector Fields uk_UA
dc.type Article uk_UA
dc.status published earlier uk_UA


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