symmetric monoidal (∞,1)-category of spectra
An algebra with a reciprocal that behaves like $\frac{1}{x}$ in the rational and real numbers.
A reciprocal algebra is a possibly non-associative algebra $A$, typically over a field $k$, which has the property that for non-zero element $b$, there exists an element $c$, called the reciprocal of $b$, such that for every element $a$
Every Cayley-Dickson algebra is a reciprocal algebra. Examples include the real numbers $\mathbb{R}$, the complex numbers $\mathbb{C}$, the quaternions $\mathbb{H}$, and the octonions $\mathbb{O}$.
The ring of rational polynomials $\mathbb{R}(X)$ is a real reciprocal algebra.
There exists a reciprocal algebra with nonzero zero divisors.
Last revised on June 13, 2022 at 15:38:55. See the history of this page for a list of all contributions to it.