Circuit-cocircuit intersection conjecture for q-matroids

Let MM be a qq-matroid with circuits C\mathcal{C} and cocircuits C\mathcal{C}^*. Suppose

dim(CC)1\dim(C\cap C^*)\neq 1

for all CCC\in\mathcal{C} and CCC^*\in\mathcal{C}^*. Then Definition gives a relation on the qq-matroid MM.

Circuit-cocircuit intersection conjecture. Under these hypotheses, Definition is an equivalence relation.

This is presented as a sufficient condition suggested by the paper's examples, but the supplied text gives no evidence that it has been proved or disproved.

Sources & referencesView supporting material

Primary source

Michela Ceria and Relinde Jurrius, “The direct sum of q-matroids”, arXiv:2109.13637 (2022).

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