aurel@math.ubc.ca, reichst@math.ubc.ca
Submission: 2008, Nov 15, revised 2010, Jun 8
We use a recent theorem of N. A. Karpenko and A. S. Merkurjev to settle several questions in the theory of essential dimension.
2000 Mathematics Subject Classification: 20D15, 20C15, 20G15
Keywords and Phrases: Essential dimension, linear representation, p-group, algebraic torus.
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