KK theory
theory in mathematics
In math, the KK theory is a theory where there's a fifth dimension, instead of only 4 (time, depth, width, length). It was introduced by Russian mathematician Gennadi Kasparov in 1980.[1]
(This is the first version. Feel free to edit.)
![{\displaystyle {\displaystyle [F,\rho (a)],(F^{2}-1)\rho (a),(F-F^{*})\rho (a)}}](https://wikimedia.org/api/rest_v1/media/math/render/svg/7a7446fa8ef8ceb2adf1a90bac08bd7a6ef4d96d)