Equation Icon  prod prod Tg,k,m(A) = rke(he) rmv(gKf(v))rnv (gKz(v))rkv (b(v)) e (- g ( v (- V(g) ) prod 1 prod igmvKf(v) ignvKz(v) ikvb(v) = exp 2ike integral Ax(x)dx e e e , (63) e (- g e v (- V (g)