7 citations · 11 across the 4 of their papers we have counts for
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math.GR2009★ 7 cited
Essential p-dimension of algebraic tori
Roland Lötscher, Mark MacDonald, Aurel Meyer +1
The essential dimension is a numerical invariant of an algebraic group G which may be thought of as a measure of complexity of G-torsors over fields. A recent theorem of N. Karpenk…
math.AG2009
Projective homogeneous varieties birational to quadrics
Mark L. MacDonald
We will consider an explicit birational map between a quadric and the projective variety X(J) of traceless rank one elements in a simple reduced Jordan algebra J. X(J) is a homogen…