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add Huang and Nguyen's bumpless pipe dream growth diagrams#41829

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mantepse:growth/BPD
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add Huang and Nguyen's bumpless pipe dream growth diagrams#41829
mantepse wants to merge 15 commits into
sagemath:developfrom
mantepse:growth/BPD

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@mantepse

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This implements the forward rule from Theorem 2.9 in https://arxiv.org/abs/2312.00355

Comment thread src/sage/combinat/growth.py Outdated
Comment thread src/sage/combinat/growth.py Outdated
Co-authored-by: Martin Rubey <axiomize@yahoo.de>
Comment thread src/sage/combinat/growth.py Outdated
Comment thread src/sage/combinat/growth.py Outdated
Comment thread src/sage/combinat/growth.py Outdated
Co-authored-by: Martin Rubey <axiomize@yahoo.de>
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3 failing doctests

@mantepse mantepse marked this pull request as draft March 20, 2026 16:53
@mantepse

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3 failing doctests

Yes, the last "good" growth diagram PR's are #41751, #41764, #41752 and #41750. The growth diagrams here are a bit weird, because there is no underlying pair of dual graded graphs, at least, I don't understand them yet. So, I would rather leave this for now. I think that #41751 and #41764 are really ready, the other two might need some polishing.

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