Killing spinors, twistor - spinors and H
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Andre Lichnerowicz
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Article
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1988
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Elsevier Science
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English
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Let 1W, g) be a spin manifold of dimension n. In terms of the Dirac operator P of (W, g), we introduce on the spinor fields a conformally covariant first-order operator D that is strictly connected with the twisror-spinors. We show that the operator (L~-p) (p (n/4(n .-1))R) is positive. For a compac