Abstract
An explicit formula is given for the graded trace of a permutation acting on the cohomology of the space of configurations of n ordered distinct points of R d. This is applied to determine the top and total cohomology as modules for the symmetric group, and to locate the occurrence of the alternating representation.
Similar content being viewed by others
References
Cohen, F. R., Lada, T. J. and May, J. P.: The Homology of Iterated Loop Spaces, Lecture Notes in Math. 533, Springer-Verlag, New York, 1976.
Cohen, F. R. and Taylor, L. R.: On the representation theory associated to the cohomology of configuration spaces, In: Algebraic Topology (Oaxtepec, 1991), Contemp. Math. 146, Amer. Math. Soc., Providence, RI, 1993, pp. 91–109.
Lehrer, G. I.: On the Poincaré series associated with Coxeter group actions on complements of hyperplanes, J. London Math. Soc. (2) 36 (1987), 275–294.
Lehrer, G. I.: The l-adic cohomology of hyperplane complements, Bull. London Math. Soc. 24 (1992), 76–82.
Lehrer, G. I.: Poincaré polynomials for unitary reflection groups, Invent. Math. 120 (1995), 411–425.
Lehrer, G. I.: The cohomology of the regular semisimple variety, J. Algebra 199 (1998), 666–689.
[LS] Lehrer, G. I. and Solomon, L.: On the action of the symmetric group on the cohomology of the complement of its reflecting hyperplanes, J. Algebra 104 (1986), 410–424.
[S] Stanley, R. P.: Some aspects of groups acting on finite posets, J. Combin. Theory Ser. A 32 (1982), 132–161.
Author information
Authors and Affiliations
Rights and permissions
About this article
Cite this article
Lehrer, G.I. Equivariant Cohomology of Configurations in Rd . Algebras and Representation Theory 3, 377–384 (2000). https://doi.org/10.1023/A:1009906210797
Issue Date:
DOI: https://doi.org/10.1023/A:1009906210797