Herzog's minimality conjecture for exterior generic annihilator numbers

Let EE be the exterior algebra on E1E_1, let JEJ\subseteq E be a graded ideal, and let v1,,vnv_1,\ldots,v_n be a basis of E1E_1. Write αi,j(E/J)\alpha_{i,j}(E/J) for the exterior generic annihilator numbers of E/JE/J, and αi,j(v1,,vn;E/J)\alpha_{i,j}(v_1,\ldots,v_n;E/J) for the exterior annihilator numbers with respect to this basis.

Herzog's minimality conjecture. For 1in1\leq i\leq n and j0j\geq 0,

αi,j(E/J)αi,j(v1,,vn;E/J).\alpha_{i,j}(E/J)\leq \alpha_{i,j}(v_1,\ldots,v_n;E/J).

The conjecture asks whether the exterior generic annihilator numbers are minimal among the exterior annihilator numbers associated to all bases. The surrounding discussion states that the conjecture is false and provides a counterexample; corresponding symmetric generic annihilator numbers are also shown to admit a counterexample after slight modifications.

Sources & referencesView supporting material

Primary source

Gesa Kaempf and Martina Kubitzke, “Exterior depth and exterior generic annihilator numbers”, arXiv:0903.3884 (2009).

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.