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New York Journal of Mathematics
Volume 28 (2022), 337-356

  

Abhijit Champanerkar and Ilya Kofman

A volumish theorem for alternating virtual links

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Published: February 4, 2022.
Keywords: twist number, hyperbolic volume, Jones-Krushkal polynomial.
Subject: 57M27, 57M15, 05C31.

Abstract
Dasbach and Lin proved a "volumish theorem" for alternating links. We prove the analogue for alternating link diagrams on surfaces, which provides bounds on the hyperbolic volume of a link in a thickened surface in terms of coefficients of its reduced Jones-Krushkal polynomial. Along the way, we show that certain coefficients of the 4-variable Krushkal polynomial express the cycle rank of the reduced Tait graph on the surface.

Acknowledgements

The research of both authors is partially supported by grants from the Simons Foundation and PSC-CUNY.


Author information

Abhijit Champanerkar:
Department of Mathematics
College of Staten Island & The Graduate Center
City University of New York
Staten Island, NY 10314, USA

abhijit@math.csi.cuny.edu

Ilya Kofman:
Department of Mathematics
College of Staten Island & The Graduate Center
City University of New York
Staten Island, NY 10314, USA

ikofman@math.csi.cuny.edu