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arxiv: 0907.1421 · v2 · pith:GNDR2QMJnew · submitted 2009-07-09 · 🧮 math.CO

Irreducible Triangulations are Small

classification 🧮 math.CO
keywords irreduciblesurfacetriangulationanotherbestboundcontractionedge
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A triangulation of a surface is \emph{irreducible} if there is no edge whose contraction produces another triangulation of the surface. We prove that every irreducible triangulation of a surface with Euler genus $g\geq1$ has at most $13g-4$ vertices. The best previous bound was $171g-72$.

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