The property RR_\infty conjecture for the Artin group of type D5D_5

Let A[D5]A[D_5] be the Artin group of spherical type D5D_5, and let Z(A[D5])Z(A[D_5]) denote its center. The D5D_5 property RR_\infty conjecture. The Artin group A[D5]A[D_5] and its central quotient

A[D5]/Z(A[D5])A[D_5]/Z(A[D_5])

also have property RR_\infty. The cases of type DnD_n for n6n\geqslant 6 and type D4D_4 are known, leaving A[D5]A[D_5] as the only unresolved case in this series.

Sources & referencesView supporting material

Primary source

Ignat Soroko and Nicolas Vaskou, “Property R_for new classes of Artin groups”, arXiv:2409.18123 (2026).

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