About twistor spinors with zero in Lorentzian geometry.
Leitner, Felipe (2009)
SIGMA. Symmetry, Integrability and Geometry: Methods and Applications [electronic only]
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Leitner, Felipe (2009)
SIGMA. Symmetry, Integrability and Geometry: Methods and Applications [electronic only]
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Matthias Hammerl (2008)
Archivum Mathematicum
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BGG-operators form sequences of invariant differential operators and the first of these is overdetermined. Interesting equations in conformal geometry described by these operators are those for Einstein scales, conformal Killing forms and conformal Killing tensors. We present a deformation procedure of the tractor connection which yields an invariant prolongation of the first operator. The explicit calculation is presented in the case of conformal Killing forms.
Graham, C.Robin (2007)
SIGMA. Symmetry, Integrability and Geometry: Methods and Applications [electronic only]
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Gover, A.Rod (2007)
SIGMA. Symmetry, Integrability and Geometry: Methods and Applications [electronic only]
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Branson, Thomas P. (2007)
SIGMA. Symmetry, Integrability and Geometry: Methods and Applications [electronic only]
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Eastwood, Michael G. (2007)
SIGMA. Symmetry, Integrability and Geometry: Methods and Applications [electronic only]
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