Reducedness conjecture for real Schubert intersections

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Let m,p≥1m,p\geq 1, let γ\gamma be the real rational normal curve, and let w1,…,wnw_1,\ldots,w_n be Schubert conditions satisfying

mp=∣w1∣+⋯+∣wn∣.mp=|w_1|+\cdots+|w_n|.

For distinct real points s1,…,sn∈γs_1,\ldots,s_n\in\gamma, consider the corresponding Schubert intersection scheme. Reducedness conjecture. The intersection scheme is reduced. The source says this holds in every known case, but remains conjectural in general.

References

Primary source

Frank Sottile, “The special Schubert calculus is real”, arXiv:math/9904153 (1999).

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