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On the irreducibility of singular braid group representations

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arxiv 2508.11580 v3 pith:2HZ6X7FQ submitted 2025-08-15 math.RT

On the irreducibility of singular braid group representations

classification math.RT
keywords representationsirreducibilitymathbbmathrmbraidgroupirreduciblesingular
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In this article, we investigate the irreducibility of representations of the singular braid group on $n$ strands, denoted by $SB_n$. We first show that all representations $\rho: SB_2 \to \mathrm{GL}_2(\mathbb{C})$ are reducible. We then determine all irreducible representations $\rho: SB_3 \to \mathrm{GL}_2(\mathbb{C})$ and construct several families of irreducible representations $\rho: SB_3 \to \mathrm{GL}_3(\mathbb{C})$. Finally, we study the irreducibility of homogeneous local representations of $SB_n$ for all $n \geq 3$.

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