TY - JOUR AU - Martino, Ivan PY - 2017/05/27 Y2 - 2024/03/28 TI - Introduction to the Ekedahl Invariants JF - MATHEMATICA SCANDINAVICA JA - Math. Scand. VL - 120 IS - 2 SE - Articles DO - 10.7146/math.scand.a-25693 UR - https://www.mscand.dk/article/view/25693 SP - 211-224 AB - In 2009, T. Ekedahl introduced certain cohomological invariants for finite groups. In this work we present these invariants and we give an equivalent definition that does not involve the notion of algebraic stacks. Moreover we show certain properties for the class of the classifying stack of a finite group in the Kontsevich value ring. ER -