Cohomological invariants of Jordan algebras with frames

MacDonald, Mark (2010) Cohomological invariants of Jordan algebras with frames. Journal of Algebra, 323 (6). pp. 1665-1677. ISSN 0021-8693

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Abstract

In a previous paper the author determined all possible cohomological invariants of Aut(J)-torsors in Galois cohomology with mod 2 coefficients, where J is a split central simple Jordan algebra of odd degree n⩾3. In the present paper we extend these results to a larger class of groups indexed by r=0, 1, 2 or 3, and ni positive integers that add to n⩾3 such that n1 is odd. We also give precise values for the essential dimension of these groups.

Item Type:
Journal Article
Journal or Publication Title:
Journal of Algebra
Uncontrolled Keywords:
/dk/atira/pure/researchoutput/libraryofcongress/qa
Subjects:
ID Code:
59951
Deposited By:
Deposited On:
12 Nov 2012 10:15
Refereed?:
Yes
Published?:
Published
Last Modified:
01 Jan 2020 08:13