Comptes Rendus
Topology
Symplectic and orthogonal K-groups of the integers
[K-groupes symplectiques et orthogonaux de l'anneau des entiers]
Comptes Rendus. Mathématique, Volume 357 (2019) no. 8, pp. 686-690.

Nous calculons explicitement les groupes d'homotopie des espaces topologiques BSp(Z)+, BO,(Z)+ et BO(Z)+.

We explicitly compute the homotopy groups of the topological spaces BSp(Z)+, BO,(Z)+, and BO(Z)+.

Reçu le :
Accepté le :
Publié le :
DOI : 10.1016/j.crma.2019.08.001
Marco Schlichting 1

1 Mathematics Institute, Zeeman Building, University of Warwick, Coventry CV4 7AL, UK
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Marco Schlichting. Symplectic and orthogonal K-groups of the integers. Comptes Rendus. Mathématique, Volume 357 (2019) no. 8, pp. 686-690. doi : 10.1016/j.crma.2019.08.001. https://comptes-rendus.academie-sciences.fr/mathematique/articles/10.1016/j.crma.2019.08.001/

[1] P. Balmer Triangular Witt groups. II. From usual to derived, Math. Z., Volume 236 (2001) no. 2, pp. 351-382

[2] E.M. Friedlander Computations of K-theories of finite fields, Topology, Volume 15 (1976) no. 1, pp. 87-109

[3] M. Karoubi Bott periodicity in topological, algebraic and Hermitian K-theory, Handbook of K-Theory, Vol. 1, 2, Springer, Berlin, 2005, pp. 111-137

[4] J. Milnor; D. Husemoller Symmetric Bilinear Forms, Ergebnisse der Mathematik und ihrer Grenzgebiete, vol. 73, Springer-Verlag, New York, Heidelberg, 1973

[5] J. Rognes K4(Z) is the trivial group, Topology, Volume 39 (2000) no. 2, pp. 267-281

[6] M. Schlichting The Mayer–Vietoris principle for Grothendieck–Witt groups of schemes, Invent. Math., Volume 179 (2010) no. 2, pp. 349-433

[7] M. Schlichting Hermitian K-theory, derived equivalences and Karoubi's fundamental theorem, J. Pure Appl. Algebra, Volume 221 (2017) no. 7, pp. 1729-1844

[8] M. Schlichting Higher K-theory of forms I. From rings to exact categories, J. Inst. Math. Jussieu (2019) (in prees) | DOI

[9] M. Schlichting, Higher K-theory of forms II. From exact categories to chain complexes, in preparation.

[10] M. Schlichting, Higher K-theory of forms III. From chain complexes to derived categories, in preparation.

[11] M. Schlichting, Higher K-theory of forms for Dedekind domains, in preparation.

[12] C. Weibel Algebraic K-theory of rings of integers in local and global fields (E.M. Friedlander; D.R. Grayson, eds.), Handbook of K-Theory, Vol. 1, Springer, Berlin, 2005, pp. 139-190

Cité par Sources :

This work was partially funded by the Leverhulme Trust.

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