Recent content by feyomi

If A = {(x,y) : x³ = y² = e, yx = xˉ¹y} and B = {(u,v) : u^4 = v² = e, vu = uˉ¹v}, how do I go about finding the orders of, say, (x,v) and (x,u²) in A x B? Thanks.

The group in question is U100, the group of units modulo 100, which, correct me if I'm wrong, is equal to {3, 7, 9, 11, 13, 17, 19, 21, 23, 27, 29, 31, 33, 37, 39, 41, 43, 47, 49, 51, 53, 57, 59, 61, 63, 67, 69, 71, 73, 77, 79, 81, 83, 87, 89, 91, 93, 97, 99}. How many elements are there of...

Cool, thanks Adrian.

The recently discovered Chi_b (3P) is made up of a bottom quark and an anti bottom quark. I thought, however, that should a matter particle meet with its anti counterpart, they would annihilate into pure energy. Am I missing something? Thanks.