

![0_image_0.png](0_image_0.png)

![0_image_1.png](0_image_1.png)

F
:
F
F

$\mathbf{M}$
$$0\quad\mathrm{~{\bf~f}\!\!f}$$
F

$$Z_{-\ i}$$
$$h_{k}^{\prime}\qquad h_{k}\,+\,J_{i k}$$
$$\left\langle s_{i}\right\rangle$$
$\pi$. 