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 Events
University of Washington
Thu 11 Sep 2014, 3:30pm
Number Theory Seminar
room K10908, IRMACS, SFU
Obstructions to the Hasse principle on degree 4 del Pezzo surfaces
room K10908, IRMACS, SFU
Thu 11 Sep 2014, 3:30pm-4:30pm

Abstract

In 1970, Manin showed that the Brauer group can obstruct the existence of rational points. Colliot-Thélène and Sansuc have conjectured that this obstruction completely explains the failure of rational points on del Pezzo surfaces. We show that on degree 4 del Pezzo surfaces, this Brauer-Manin obstruction manifests itself through linear projections. As a consequence of the proof, we obtain a simple and efficient for computing the Brauer classes of a degree 4 del Pezzo surface. This is joint work with Anthony Várilly-Alvarado.
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Hebrew University of Jerusalem
Thu 18 Sep 2014, 3:30pm
Number Theory Seminar
room MATH 126
TBA
room MATH 126
Thu 18 Sep 2014, 3:30pm-4:30pm

Abstract

 
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Khoa Nguyen
UBC
Thu 25 Sep 2014, 3:30pm
Number Theory Seminar
room MATH 126
TBA
room MATH 126
Thu 25 Sep 2014, 3:30pm-4:30pm

Abstract

 
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Université Pierre et Marie Curie
Thu 2 Oct 2014, 3:30pm
Number Theory Seminar
room MATH 126
TBA
room MATH 126
Thu 2 Oct 2014, 3:30pm-4:30pm

Abstract

 
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Dick Gross
Thu 9 Oct 2014, 3:30pm
Number Theory Seminar
room MATH 126
TBA
room MATH 126
Thu 9 Oct 2014, 3:30pm-4:30pm

Abstract

 
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TBA
Thu 16 Oct 2014, 3:30pm
Number Theory Seminar
room MATH 126
room MATH 126
Thu 16 Oct 2014, 3:30pm-4:30pm

Abstract

 
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TBA
Thu 23 Oct 2014, 3:30pm
Number Theory Seminar
room MATH 126
room MATH 126
Thu 23 Oct 2014, 3:30pm-4:30pm

Abstract

 
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Emory University
Thu 30 Oct 2014, 3:30pm
Number Theory Seminar
room MATH 126
TBA
room MATH 126
Thu 30 Oct 2014, 3:30pm-4:30pm

Abstract

 
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Uriya First
UBC
Thu 6 Nov 2014, 3:30pm
Number Theory Seminar
room MATH 126
TBA
room MATH 126
Thu 6 Nov 2014, 3:30pm-4:30pm

Abstract

 
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TBA
Thu 13 Nov 2014, 3:30pm
Number Theory Seminar
room MATH 126
room MATH 126
Thu 13 Nov 2014, 3:30pm-4:30pm

Abstract

 
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TBA
Thu 20 Nov 2014, 3:30pm
Number Theory Seminar
room MATH 126
room MATH 126
Thu 20 Nov 2014, 3:30pm-4:30pm

Abstract

 
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TBA
Thu 27 Nov 2014, 3:30pm
Number Theory Seminar
room MATH 126
room MATH 126
Thu 27 Nov 2014, 3:30pm-4:30pm

Abstract

 
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