32 citations · 47 across the 8 of their papers we have counts for
Showing math.GRShow all
2 papers · 1 filter
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.GR2003
Trace forms of Galois extensions in the presence of a fourth root of unity
J. Minac, Z. Reichstein
We study quadratic forms that can occur as trace forms of Galois field extensions L/K, under the assumption that K contains a primitive 4th root of unity. M. Epkenhans conjectured…