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<p>We introduce the concept of locally inductive constellations and establish isomorphisms between the categories of left restriction semigroupoids and locally inductive constellations. This construction offers an alternative to the celebrated Ehresmann–Schein–Nambooripad (ESN) Theorem and, in particular, generalizes results for one-sided restriction semigroups. We also obtain ESN-type theorems for one-sided restriction categories and inverse semigroupoids.</p>

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An Ehresmann-Schein-Nambooripad-type theorem for left restriction semigroupoids

  • 期刊论文

  • 出版模式：

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  • 发表日期：

    2026年2月17日

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  • Rafael Haag,
  • Wesley G. Lautenschlaeger,
  • Thaísa Tamusiunas

摘要

We introduce the concept of locally inductive constellations and establish isomorphisms between the categories of left restriction semigroupoids and locally inductive constellations. This construction offers an alternative to the celebrated Ehresmann–Schein–Nambooripad (ESN) Theorem and, in particular, generalizes results for one-sided restriction semigroups. We also obtain ESN-type theorems for one-sided restriction categories and inverse semigroupoids.