2006/03/19 by Zhaohu Nie, Nie, Zhaohu
Mathematics · #14F42 #55S15 #Algebraic Geometry (math.AG) #FOS: Mathematics #math.AG #msc:14F42 #msc:55S15
paper · pdf · doi:10.48550/arxiv.math/0603458
45 pages, 3 figures
arxiv created 2006/03/19 · arxiv updated 2009/12/01
We use an analogue of Karoubi's construction in the motivic situation to give some cohomology operations in motivic cohomology. We prove many properties of these operations, and we show that they coincide, up to some nonzero constants, with the reduced power operations in motivic cohomology originally constructed by Voevodsky. The relation of our construction to Voevodsky's is, roughly speaking, that of a fixed point set to its associated homotopy fixed point set.