This research extends edge contractions and embeddings in Hall algebras, highlighting algebraic structures.
We extend the study of Hall algebras and edge contractions by generalizing Yiqiang Li's work to contraction along vertices with multiple edges. Using the edge contractions, we establish new embeddings among Hall algebras in this broader setting. Our results demonstrate that these embeddings preserve key algebraic structures, including Hopf algebra operations.
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Adhish Rele (2025) studied this question.
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