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14. Nov 2024

Transcendental Brauer—Manin obstructions on singular K3 surfaces

Algebraic Geometry and Number Theory Seminar

Datum: 14. November 2024 | 13:00 – 15:00
Sprecher: Rachel Newton, King`s College London
Veranstaltungsort: Office Bldg West / Ground floor / Heinzel Seminar Room (I21.EG.101)
Sprache: Englisch

Let E and E′ be elliptic curves over Q with complex multiplication by the ring of integers of an imaginary quadratic field K and let Y = Kum(E×E′) be the minimal desingularisation of the quotient of E×E′ by the action of −1. We study the Brauer groups of such surfaces Y and use them to furnish new examples of transcendental Brauer–Manin obstructions to weak approximation. This is joint work with Mohamed Alaa Tawfik.

Weitere Informationen:

Datum:
14. November 2024
13:00 – 15:00

Sprecher:
Rachel Newton, King`s College London

Veranstaltungsort:
Office Bldg West / Ground floor / Heinzel Seminar Room (I21.EG.101)

Sprache:
Englisch

Ansprechpartner:

Oosthuizen-Noczil Birgit

Email:
boosthui@ist.ac.at

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