Bertolin, Cristiana
(2004)
*Biextensions of 1-Motives by 1-Motives.*
Preprintreihe der Fakultät Mathematik 10/2004,
Working Paper, Regensburg.

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## Abstract

Let S be a scheme and let Gi (i = 1; 2; 3) be an extension of an abelian S-scheme Ai by a S-torus Yi(1): We ¯rst sketch the proof of the following result: In the topos Tfppf , the category of biextensions of (G1;G2) by G3 is equivalent to the category of biextensions of (A1;A2) by Y3(1). Using this result, we de¯ne the notion of biextension of 1-motives by 1-motives. If M(S) denotes what ...

## Export bibliographical data

Item Type: | Monograph (Working Paper) |
---|---|

Date: | 2004 |

Institutions: | Mathematics > Prof. Dr. Uwe Jannsen |

Subjects: | 500 Science > 510 Mathematics |

Status: | Unknown |

Refereed: | No, this version has not been refereed yet (as with preprints) |

Created at the University of Regensburg: | Yes |

Owner: | Universitätsbibliothek Regensburg |

Deposited On: | 12 Apr 2010 05:46 |

Last Modified: | 13 Mar 2014 13:17 |

Item ID: | 14045 |

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