Hilbert depth equals Stanley depth for sums of maximal ideals and free modules

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Let R=\mathdsK[X1,…,Xn]R=\mathds{K}[X_1,\ldots,X_n] be a polynomial ring in an arbitrary positive number of variables, let m=(X1,…,Xn)\mathfrak m=(X_1,\ldots,X_n) be its homogeneous maximal ideal, and let α,β∈\mathdsN\alpha,\beta\in\mathds{N}. Consider the \mathdsZ\mathds{Z}-graded module m⊕α⊕Rβ\mathfrak m^{\oplus\alpha}\oplus R^\beta. The Hilbert–Stanley depth conjecture. The \mathdsZ\mathds{Z}-graded Hilbert depth of m⊕α⊕Rβ\mathfrak m^{\oplus\alpha}\oplus R^\beta and its Stanley depth coincide. The conjecture is presented as a strengthening of a preceding proposition and is based on several examples; the supplied source gives no further evidence of resolution.

References

Primary source

Bogdan Ichim, Lukas Katthän and Julio José Moyano-Fernández, “How to compute the Stanley depth of a module”, arXiv:1503.00910 (2015).

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