A quartic conformally covariant differential operator for arbitrary pseudo-Riemannian manifolds (Summary).
Paneitz, Stephen M.
SIGMA. Symmetry, Integrability and Geometry: Methods and Applications [electronic only], Tome 4 (2008), / Harvested from The Electronic Library of Mathematics
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Publié le : 2008-01-01
DOI : https://doi.org/10.3842/SIGMA.2008.036
EUDML-ID : urn:eudml:doc:54501 
@article{05309256,
     title = {A quartic conformally covariant differential operator for arbitrary pseudo-Riemannian manifolds (Summary).},
     journal = {SIGMA. Symmetry, Integrability and Geometry: Methods and Applications [electronic only]},
     volume = {4},
     year = {2008},
     doi = {10.3842/SIGMA.2008.036},
     zbl = {1145.53053},
     language = {en},
     url = {http://dml.mathdoc.fr/item/05309256}
}

Paneitz, Stephen M. A quartic conformally covariant differential operator for arbitrary pseudo-Riemannian manifolds (Summary).. SIGMA. Symmetry, Integrability and Geometry: Methods and Applications [electronic only], Tome 4 (2008) . doi : 10.3842/SIGMA.2008.036. http://gdmltest.u-ga.fr/item/05309256/