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| | [No title] (Site not responding. Last check: 2007-11-05) |
 | | Just as happens for volume and area, it can be shown by continuity considerations that the measure $\mu_1$ can be extended to all reasonable solids in ordinary space, for example, to all convex sets and to all polyhedra, convex or non convex. |
 | | The intrinsic volumes are first defined on an orthogonal polytope $P$ whose sides equal $x_1,x_2,\dots, x_n$ by setting $$\mu_k(P) = e_k(x_1,x_2,\dots,x_n),$$ where $ e_x(x_1,x_2,\dots,x_n) $ is the $k$-th elementary symmetric function. |
 | | The answer is clear: such a probability equals the ratio of the volume of $A$ by the volume of $B$. |
| www-math.mit.edu /~combin/archive/old/98a.html (17757 words) |
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