References in periodicals archive ?
Since (nH[[delta].sub.ij] - [h.sup.[alpha].sub.ij]) is trace-free it follows from [4] that the operator [??] is self-adjoint to the [L.sup.2]-inner product of N, i.e.,
Continuing the fashion theme, Dove says that black is the most popular fasion color, so its Invisible Dry offers trace-free protection from perspiration, dampness and odor (thanks to a deodorant active combined with glycerine and moisturizers) as well as a fresh fragrance.
No cables need to be cut, so a trace-free dismantling is possible at any time.