Path-category realization conjecture for spectroids

From papers

Let k\Bbbk be a field, and let C\mathcal{C} be a spectroid, meaning a small k\Bbbk-linear category whose Hom-spaces are finite-dimensional and whose nonzero endomorphism algebras are division algebras. A path category is constructed from a pair (X,Γ/)(\mathbb{X},\Gamma{/}{\sim}) by taking objects X\mathbb{X} and morphisms represented by equivalence classes of paths; its k\Bbbk-linear path category is the k\Bbbk-linearization of this category, with a zero object.

Path-category realization conjecture. For every spectroid C\mathcal{C}, there exists a choice of (X,Γ/)(\mathbb{X},\Gamma{/}{\sim}) such that C\mathcal{C} is the k\Bbbk-linear path category of (X,Γ/)(\mathbb{X},\Gamma{/}{\sim}).

The conjecture asks whether every spectroid admits a realization by a path category and its k\Bbbk-linearization. The paper states that this question falls outside its scope, and no resolution is supplied here.

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Sources & referencesView supporting material

Primary source

J. Daisie Rock, “Introducing pixelation with applications”, arXiv:2603.25432 (2026).

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