The Félix--Jessup--Murillo nilpotence conjecture

Let (ΛV,d)(\Lambda V,\operatorname{d}) be a minimal Sullivan algebra with V1=0V^1=0, and suppose that both the even-degree part VevenV^{\mathrm{even}} and the even-degree cohomology Heven(ΛV,d)H^{\mathrm{even}}(\Lambda V,\operatorname{d}) are finite dimensional. Let (vi)i0(v_i)_{i\geq 0} be a homogeneous basis of VV. Nilpotent Omnibus Conjecture. Each viv_i is nilpotent in the cohomology algebra H(ΛVdegvi,dˉ)H(\Lambda V^{\geq \deg v_i},\bar{\operatorname{d}}). The source attributes this conjecture to Félix--Jessup--Murillo, presents a slightly weaker form than theirs, and states that it implies Anick's conjecture; no resolution is stated in the supplied text.

Sources & referencesView supporting material

Primary source

Manuel Amann, “The Omnibus Conjecture—disproved”, arXiv:2011.01827 (2020).

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