Variation of Mumford quotients by torus actions on full flag varieties. II

This paper continues the study of the variation of the Mumford quotient by the action of a maximal torus $T$ on a flag variety $G/B$ in terms of its dependence on the projective embedding $G/B\hookrightarrow\mathbb P(V(\chi))$. In the case when $G$ is of type $A_l$, the Picard group of the quotient $(G/B)^{ss}/\!/T$ is calculated under the assumption that the $T$-linearization comes from the standard $G$-linearization.
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