Equation 12.19.113DC335D33654

\begin{equation} T_{j,0}=\rho _ j(\zeta )\sigma _\zeta \wedge K_ f,\qquad K_ f=\int _\mathbb Cf(a,y-ax)\frac{\mathrm{i}}{2\pi } (\mathrm{d}y-a\, \mathrm{d}x)\wedge (\mathrm{d}\bar y-\bar a\, \mathrm{d}\bar x)\, \sigma _ a, \end{equation}