MacDonald, Mark (2010) Cohomological invariants of Jordan algebras with frames. Journal of Algebra, 323 (6). pp. 1665-1677. ISSN 0021-8693Full text not available from this repository.
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.
|Journal or Publication Title:||Journal of Algebra|
|Uncontrolled Keywords:||Cohomological invariants ; Jordan algebras ; Essential dimension ; Quadratic and hermitian forms|
|Subjects:||Q Science > QA Mathematics|
|Departments:||Faculty of Science and Technology > Mathematics and Statistics|
|Deposited On:||12 Nov 2012 10:15|
|Last Modified:||07 Jan 2015 18:04|
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