symmetric monoidal (∞,1)-category of spectra
A field extension by a primitive root of unity .
The default meaning where is left unspecified is , the field of rational numbers, where may be taken to be (hence the smallest subfield of the complex numbers that contains this exponential value).
Keith Conrad, Cyclotomic extensions [pdf, pdf]
Wikipedia, cyclotomic field
Last revised on October 25, 2023 at 12:09:54. See the history of this page for a list of all contributions to it.