avysk: (dwarf)
Alexey Vyskubov ([personal profile] avysk) wrote2014-02-01 09:52 am

Удивительное рядом

“Physicists do not always clearly distinguish between a matrix Lie group and its (real) Lie algebra, or between a real Lie algebra and its complexification. Thus, for example, some references in the physics literature to SU(2) actually refer to the complexified Lie algebra, sl(2;C).”

Да, действительно, какая разница -- унитарные матрицы с определителем 1, или что угодно, лишь бы след был 0.

Хорошо, что я не физик. “I'm really awfully glad I'm a Beta, because I don't work so hard.”