Gorsky–Rasmussen conjecture for twisted projectors

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Let nn be a positive integer, let w∈Snw\in S_n be a permutation, and let EE be the ring from Definition of the source. Let x1,…,xnx_1,\ldots,x_n be formal indeterminates, and let w(P1n∨)w(P_{1^{n}}^\vee) denote the complex obtained by applying ww to the dual one-column projector. Define JwJ_w to be the ideal generated by the differences xw(i)−xix_{w(i)}-x_i for 1≤i≤n1\leq i\leq n. Gorsky–Rasmussen conjecture. For every permutation w∈Snw\in S_n, the degree-zero homology satisfies

HHH⁡0(w(P1n∨))≅E/Jw.\operatorname{HHH}^0(w(P_{1^{n}}^\vee))\cong E/J_w.

The claim gives an explicit flag-Hilbert-scheme description of the degree-zero homology of twisted projectors. The supplied text does not state whether this conjecture has been resolved.

References

Primary source

Michael Abel and Matthew Hogancamp, “Categorified Young symmetrizers and stable homology of torus links II”, arXiv:1510.05330 (2016).

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