A calculation of the multiplicative character

  • Jens Kaad

    Radboud University Nijmegen, Netherlands


We give an explicit formula for the application of the Connes–Karoubi multiplicative character to higher Loday products of elements in the connected component of the identity. On our way we construct a product on the relative K-groups of Banach algebras and investigate the multiplicative properties of the relative Chern character.

Cite this article

Jens Kaad, A calculation of the multiplicative character. J. Noncommut. Geom. 5 (2011), no. 3, pp. 351–385

DOI 10.4171/JNCG/79