The braid-to-tangle skein isomorphism conjecture for the punctured torus

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Let BSkn(T2,∗)\mathrm{BSk}_n(T^2,*) be the braid skein algebra of the punctured torus with nn strands, and let Skn(T2,∗)\mathrm{Sk}_n(T^2,*) be the corresponding full framed Homflypt tangle skein algebra. There is a natural homomorphism from the braid skein algebra to the tangle skein algebra, obtained by viewing braids with consistent framings as framed tangles. Braid-to-tangle skein isomorphism conjecture. The map

BSkn(T2,∗)→Skn(T2,∗)\mathrm{BSk}_n(T^2,*)\to\mathrm{Sk}_n(T^2,*)

from the braid skein algebra to the tangle skein algebra is an isomorphism. This would show that allowing general framed arcs introduces no additional algebraic relations or collapse beyond the braid skein description.

References

Primary source

Hugh Morton and Peter Samuelson, “DAHAs and skein theory”, arXiv:1909.11247 (2021).

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