nLab
cyclotomic trace

Context

Cohomology

cohomology

Special and general types

Special notions

Variants

Extra structure

Operations

Theorems

Higher algebra

Contents

Idea

Given a ring RR, then there is a natural morphism of spectra

TC(R) K(R) THH(R) \array{ && \mathbf{TC}(R) \\ & \nearrow & \downarrow \\ \mathbf{K}(R) &\longrightarrow& \mathbf{THH}(R) }

from the algebraic K-theory spectrum to the topological Hochschild homology spectrum and factoring through the topological cyclic homology spectrum (a cyclotomic spectrum) called the cyclotomic trace which much like a Chern character map for algebraic K-theory.

This is a refinement to spectra of the Dennis trace.

References

For more see the references at topological Hochschild homology.

Last revised on December 15, 2015 at 12:37:12. See the history of this page for a list of all contributions to it.