Definition 3.82 . [02N6]

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Definition 3.82.

For a convex polyhedron $\Lambda$ in $N_{\mathbb{R}}$ we set

{\mathscr{D}}(\Lambda)=\{g-h\mid g,h\in\mathscr{P}(\Lambda)\},\quad{\overline{\mathscr{D}}}(\Lambda)=\{g-h\mid g,h\in{\overline{\mathscr{P}}}(\Lambda)\}.