Computation of the taut, the veering and the Teichmüller polynomials

Anna Parlak

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arXiv · 2009.13558

Computation of the taut, the veering and the Teichmüller polynomials

Anna Parlak

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Abstract

Landry, Minsky and Taylor [LMT] introduced two polynomial invariants of veering triangulations -- the taut polynomial and the veering polynomial. We give algorithms to compute these invariants. In their definition [LMT] use only the upper track of the veering triangulation, while we consider both the upper and the lower track. We prove that the lower and the upper taut polynomials are equal. However, we show that there are veering triangulations whose lower and upper veering polynomials are different. [LMT] related the Teichmüller polynomial of a fibred face of the Thurston norm ball with the taut polynomial of the associated layered veering triangulation. We use this result to give an algorithm to compute the Teichmüller polynomial of any fibred face of the Thurston norm ball.

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BibTeX RIS

Anna Parlak. 2021-01-20. Computation of the taut, the veering and the Teichmüller polynomials. https://arxiv.org/abs/2009.13558

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