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Rost invariant and isotropness of groups of type E_7

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Victor Petrov (Mainz)

What
  • SFB-Kolloquium
When Jan 20, 2011
from 03:15 pm to 04:15 pm
Where Mainz, 05-432 (Hilbertraum)
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Abstract: In the joint work with Nikita Semenov and Skip Garibaldi we show that the isotropness of a srtongly inner group of type E_7 is (almost) completely detected by the Rost invariant of the corresponding cocycle. The proof uses essentialy the theory of Chow motives.

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