Ag/selfprojecting matroids #5558
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…ith a first attempt at struct and some first functions, still problems with the computation of the selfprojecting realization ideal
…jecting matrix does not yet work
…alization spaces, also added a .jl file that contains the first steps towards a struct that can be used in the pending database collection
…to ag/selfprojecting_matroids
…the selfprojecting realization matrix works
…ications in the MRS and SPMRS files
…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.
…to ag/selfprojecting_matroids
…QQ the coefficient ring cannot be computed
…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.
…ojecting realization matrix
Co-authored-by: antonydellavecchia <[email protected]>
… to be better readable
Co-authored-by: antonydellavecchia <[email protected]>
Co-authored-by: antonydellavecchia <[email protected]>
Co-authored-by: antonydellavecchia <[email protected]>
…n of MatroidRealizationSpaces.jl
Co-authored-by: antonydellavecchia <[email protected]>
Co-authored-by: antonydellavecchia <[email protected]>
Co-authored-by: antonydellavecchia <[email protected]>
Co-authored-by: antonydellavecchia <[email protected]>
…mputation of the selfprojecting realization ideal
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The current documentation build failure is not your fault. It will be fixed by Nemocas/Nemo.jl#2197 soon-ish |
lgoettgens
reviewed
Dec 11, 2025
lgoettgens
reviewed
Dec 11, 2025
lgoettgens
reviewed
Dec 11, 2025
experimental/MatroidRealizationSpaces/src/SelfProjectingMatroids.jl
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…ization ideal and isntead included a warning in the docs
…r/Oscar.jl into ag/selfprojecting_matroids
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The code accompanies the article "The self-projecting Grassmannian" with Francesca Zaffalon, planned to be on arXiv by the end of the month. There will also be a database collection for oscarDB.
There are a few things that do not work yet in the functions to compute the selfprojecting_realization_matrix and selfprojecting_realization_ideal, or rather that cannot be tested, because the code doesn't terminate for relevant examples.
Questions and comments are welcome.
Tests and documentations are not yet done. I have never written tests for Oscar before, so I'd appreciate some help/advice/pointers.