The spectrum of units of $K$-theory

Autor: Carmeli, Shachar, Luecke, Kiran
Rok vydání: 2024
Předmět:
Druh dokumentu: Working Paper
Popis: It is well known that the $[0,1]$ and $[0,2]$ Postnikov truncations of the units of the topological $K$-theories $\glone KO$ and $\glone \KU$, respectively, are split, and that the splitting is provided by the ($\Z/2$-graded) line bundles. In this note we give a similar splitting for the units of algebraic $K$-theories $\glone K(\Z)$ and $\glone K(\F_\ell)$ for a prime $\ell$. We also give a complete calculation of the connective spectrum of strict units of these $K$-theory spectra.
Comment: 26 pages
Databáze: arXiv