The height of the steps 638 equals the width of these steps, so that when the plate 601 moves rearwardly under the action of a spring 601 a, as described later, the vertical face of the third step from the bottom will engage the projection 618a on the rod 618 and will arrest the ...
At the same time, the size of the operator matrix Hˆ is finite and equals to some integer. As shown in [14,15], these universality classes divide physical systems into groups depending on their relation to orthogonal, unitary or symplectic transformations, after which the matrix Hˆ ...