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Ag/selfprojecting matroids - #6122

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AlheydisGeiger wants to merge 146 commits into
oscar-system:masterfrom
AlheydisGeiger:ag/selfprojecting_matroids
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Ag/selfprojecting matroids#6122
AlheydisGeiger wants to merge 146 commits into
oscar-system:masterfrom
AlheydisGeiger:ag/selfprojecting_matroids

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@AlheydisGeiger

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Updated the documentation for the collection in oscarDB, because now the collection for the matroids of rank 4 on 9 elements is complete.
Also updated the function basis_minors by adding a kwarg to decide whether the list of polynomials from the basis minors is created as a multiplicative set. The default is false. This speeds up the computation for larger matroids and it was used to create some of the database entries.

AlheydisGeiger and others added 30 commits October 17, 2025 15:47
…ith a first attempt at struct and some first functions, still problems with the computation of the selfprojecting realization ideal
…alization spaces, also added a .jl file that contains the first steps towards a struct that can be used in the pending database collection
…realizations instead of the classical realizations, and adjusted the function computing the self-projecting realization space for the case that this space is empty.
… the inequations to avoid repetitions and 1, products are not excluded so far.
…ypes of some properties to allow for the case when the computation for the selfprojecting realization space did not terminate
Provide extra method for underlying_scheme.
AlheydisGeiger and others added 26 commits January 28, 2026 16:08
…ferent input type, basis_minors is adjusted to explain that no sorting is done if the candidates are quotientring elements
…message is only relevant for the expert user of the code. Not for the standard user, who just uses the exported functions
…or all the exported functions. No code changed
…gRealizations now the name of the argument in math formatting is used
…e three signs marking the end of the docstring
…d realizations prettier by fixing some layout mistakes
…r the list of polynomials from the basis minors is created as a multiplicative set. The default is false. This speeds up the computation fo rlarger matroids.
@YueRen YueRen self-assigned this Jul 14, 2026
@fingolfin

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unfortunately this now has some merge conflicts

@AlheydisGeiger

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unfortunately this now has some merge conflicts

This should be fixed now hopefully!

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7 participants