The ADE Link Conjecture for cyclic branched covers

From papers

Let LL be a prime, fibred, strongly quasipositive link, and let cSigmaψ(L)cSigma_{\psi}(L) denote a cyclic branched cover of LL. Write NLSNLS for the property of not being an LL-space, LOLO for having left-orderable fundamental group, and CTFCTF for supporting a co-orientable taut foliation. An ADEADE link is the boundary of a plumbing of positive Hopf bands according to one of the Dynkin diagrams AmA_m, DmD_m, E6E_6, E7E_7, or E8E_8.

The ADEADE Link Conjecture. If LL is not an ADEADE link, then all cyclic branched covers cSigmaψ(L)cSigma_{\psi}(L) of LL are NLSNLS, LOLO, and CTFCTF.

The conjecture extends the established ADEADE-link results beyond Seifert links; the source presents it as an aim whose toroidal and hyperbolic cases remain to be proved.

Progress summary

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Sources & referencesView supporting material

Primary source

Steven Boyer, Cameron McA. Gordon and Ying Hu, “Cyclic branched covers of Seifert links and properties related to the ADE link conjecture”, arXiv:2402.15914 (2024).

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