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What is known about $\operatorname{card}_E(\mathrm{MST}\cap\mathrm{MWT})$?

It is a wellknown fact of computational geometry that the edges of Minimum-weight Spanning Tree are also found in the Delaunay Triangulation of a planar pointset $\mathcal{P}$, i.e. $\operatorname{...
Manfred Weis's user avatar
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Calculating an optimal scaling factor for Delaunay triangulations

consider a finite set $\mathcal{P}(x,y)=\lbrace(x_1,y_1),\dots,\,(x_n,y_n)\rbrace$ of points in the Euclidean plane and let $\mathrm{DT}(x,y)$ be the Delaunay triangulation of $\mathcal{P}(x,y)$ ...
Manfred Weis's user avatar
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1 vote
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What are some other methods for partitioning an n-dimensional space based on a set of points in that space?

So this is a very general question, but I'm curious if there are any other methods for partitioning an n-dimensional space based on the location of a set of points, either randomly chosen or specified,...
Fran's user avatar
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How to do an elevated 2D Delaunay triangulation?

This is what I call an elevated Delaunay triangulation: This is also called a 2.5D Delaunay triangulation. To do it, I simply perform an ordinary 2D Delaunay triangulation with the (x,y)-coordinates, ...
Stéphane Laurent's user avatar
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Restrictions on crossing edges in Delaunay triangulations

what can be said about crossing edges in Delaunay triangulations, i.e. about pairs of edges that constitute to the heaviest perfect matching int the $K_4$ induced by the quadruplet of adjacent ...
Manfred Weis's user avatar
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