Linear quotients imply ridge-chordality for clutters
Linear quotients imply ridge-chordality for clutters
Let be a -clutter, and let be the circuit ideal of its complement. A ridge is a -element set contained in a circuit, and it is simplicial if the induced subclutter on the ridge together with all vertices completing it to a circuit is complete. The clutter is ridge-chordal if it admits a sequence of simplicial ridges whose successive removals delete all circuits.
Linear-quotients ridge-chordality conjecture. If has linear quotients, then is ridge-chordal.
The source explicitly presents this implication as an open question. Ridge-chordality is known to imply a linear resolution over every field, but the converse from linear quotients is not established there.
Sources & referencesView supporting material
Primary source
Anton Dochtermann, “Exposed circuits, linear quotients, and chordal clutters”, arXiv:1812.08128 (2021).
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