Results 21 to 30 of about 846,182 (334)
Higher degree Killing forms on 2-step nilmanifolds
22 pages. v3: the proof of Proposition 3.2.
Viviana del Barco, Andrei Moroianu
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Killing forms on quaternion-Kähler manifolds [PDF]
We show that every Killing p-form on a compact quaternion-K hler manifold has to be parallel for p greater than 1.
Moroianu, Andrei, Semmelmann, Uwe
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Basic gravitational currents and Killing–Yano forms [PDF]
Comment: 11 ...
Acik, O. +3 more
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Conformal Killing forms on nearly Kähler manifolds [PDF]
10 ...
Naveira, Antonio M., Semmelmann, Uwe
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Fluxes in M-theory on 7-manifolds and G structures [PDF]
We consider warp compactifications of M-theory on 7-manifolds in the presence of 4-form fluxes and investigate the constraints imposed by supersymmetry. As long as the 7-manifold supports only one Killing spinor we infer from the Killing spinor equations
A. Bilal +27 more
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Special Killing forms on toric Sasaki–Einstein manifolds [PDF]
In this paper we study the interplay between complex coordinates on the Calabi-Yau metric cone and the special Killing forms on the toric Sasaki-Einstein manifold. In the general case we give a procedure to locally construct the special Killing forms. In the final part we exemplify the general scheme in the case of the $5-$dimensional $Y^{p,q}$ spaces,
Vladimir Slesar +2 more
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Killing forms on symmetric spaces
Killing forms on Riemannian manifolds are differential forms whose covariant derivative is totally skew--symmetric. We show that a compact simply connected symmetric space carries a non--parallel Killing $p$--form ($p\ge2$) if and only if it isometric to a Riemannian product $S^k\times N$, where $S^k$ is a round sphere and $k>p$.
Belgun, Florin +2 more
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N = 4 near-horizon geometries in D = 11 supergravity
Extreme near-horizon geometries in D = 11 supergravity preserving four supersymmetries are classified. It is shown that the Killing spinors fall into three possible orbits, corresponding to pairs of spinors defined on the spatial cross-sections of the ...
D. Farotti, J. Gutowski
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Conformal Killing–Yano 2-forms
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Andrada, Adrián Marcelo +1 more
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Eigenvalue Estimates of the ${\rm spin}^c$ Dirac Operator and Harmonic Forms on K\"ahler-Einstein Manifolds [PDF]
We establish a lower bound for the eigenvalues of the Dirac operator defined on a compact K\"ahler-Einstein manifold of positive scalar curvature and endowed with particular ${\rm spin}^c$ structures.
Nakad, Roger, Pilca, Mihaela
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