A virtual RAAG with no finite index normal RAAG
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🧮 math.GR
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finitegroupindexartinnormalraagright-angledsubgroup
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In this note, we exhibit a group which has a right-angled Artin group as a finite index subgroup, but no finite index normal subgroup isomorphic to any right-angled Artin group. This answers a recent question of Vankov.
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