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On the number of acute triangles in a straight-line embedding of a maximal planar graph - MaRDI portal

On the number of acute triangles in a straight-line embedding of a maximal planar graph (Q1306427)

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scientific article; zbMATH DE number 1347241
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English
On the number of acute triangles in a straight-line embedding of a maximal planar graph
scientific article; zbMATH DE number 1347241

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    On the number of acute triangles in a straight-line embedding of a maximal planar graph (English)
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    16 February 2000
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    We show that any maximal planar graph with \(m\) triangles except the unbounded face can be transformed into a straight-line embedding in which at least \(\lceil m/3\rceil\) triangles are acute triangles. Moreover, we show that any maximal outer-planar graph can be transformed into a straight-line embedding in which all faces are acute triangles except the unbounded face. \(\copyright\) Academic Press.
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    maximal planar graph
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    straight-line embedding
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    acute triangles
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