Degree three cohomological invariants of reductive groups

作者：Laackman Donald^*; Merkurjev Alexander

来源：Commentarii Mathematici Helvetici, 2016, 91(3): 493-518.

DOI：10.4171/CMH/393

• Semisimple groups
• torsors
• motivic cohomology
• classifying space

We study the degree 3 cohomological invariants with coefficients in Q/Z(2) of a split reductive group over an arbitrary field. As an application, we compute the group of reductive indecomposable degree 3 invariants of all split simple algebraic groups.

• 出版日期2016