Minimal Taylor algebra structural conjecture

About 4 years old · traced to

Let A\mathbb{A} be a minimal Taylor algebra, meaning a Taylor algebra whose clone is minimal in the sense used by the source, and suppose that A\mathbb{A} is generated by two elements a,b∈Aa,b\in\mathbb{A}. A ternary absorbing subalgebra C⊲ZmathbbA\mathbb{C}\lhd_Zmathbb{A} is a proper subalgebra with the ternary absorption property denoted by lhdZlhd_Z in the source. Minimal Taylor structural conjecture. At least one of the following holds: A\mathbb{A} has a congruence quotient that is an affine algebra of prime order; it has a congruence quotient that is a two-element semilattice; it has a congruence quotient that is a two-element majority algebra; or there are proper ternary absorbing subalgebras C,D⊲ZmathbbA\mathbb{C},\mathbb{D}\lhd_Zmathbb{A} such that a∈Ca\in\mathbb{C}, b∈Db\in\mathbb{D}, C\cupmathbbD=A\mathbb{C}\cupmathbb{D}=\mathbb{A}, and C\capmathbbD≠∅\mathbb{C}\capmathbb{D}\neq\varnothing. The conjecture is presented as unresolved and would provide a unified structural description.

References

Primary source

Zarathustra Brady, “Notes on CSPs and Polymorphisms”, arXiv:2210.07383 (2025).

Progress summary

Never refreshed

Nothing recorded yet. Refresh searches the literature and the public web for attempts on this problem, and writes the first summary here.

Solutions 0

No solutions have been posted yet.