Invariance for multiples of the twisted canonical bundle
Benoît Claudon (2007)
Annales de l’institut Fourier
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Let a smooth projective family and a pseudo-effective line bundle on (
Benoît Claudon (2007)
Annales de l’institut Fourier
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Let a smooth projective family and a pseudo-effective line bundle on (
Andres Rodriguez (2004)
Annales mathématiques Blaise Pascal
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Let be a smooth proper family of complex curves (i.e. family of Riemann surfaces), and a -bundle over with connection along the fibres . We construct a line bundle with connection on (also in cases when the connection on has regular singularities). We discuss the resulting mainly in the case . For instance when is the moduli space of line bundles with connection over a Riemann surface , , and is the Poincaré bundle over , we show that provides a prequantization...
Arturo Echeverría-Enriquez, Miguel C. Muñoz-Lecanda, Narciso Román-Roy, Carles Victoria-Monge (1998)
Extracta Mathematicae
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Stéphane Garnier, Matthias Kalus (2014)
Archivum Mathematicum
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Let be a smooth supermanifold with connection and Batchelor model . From we construct a connection on the total space of the vector bundle . This reduction of is well-defined independently of the isomorphism . It erases information, but however it turns out that the natural identification of supercurves in (as maps from to ) with curves in restricts to a 1 to 1 correspondence on geodesics. This bijection is induced by a natural identification of initial conditions for...
Oldřich Kowalski, Masami Sekizawa (2008)
Archivum Mathematicum
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In this paper we prove that each -natural metric on a linear frame bundle over a Riemannian manifold is invariant with respect to a lifted map of a (local) isometry of the base manifold. Then we define -natural metrics on the orthonormal frame bundle and we prove the same invariance result as above for . Hence we see that, over a space of constant sectional curvature, the bundle with an arbitrary -natural metric is locally homogeneous.