dorsal/arxiv
View SchemaA Dynamical Framework for the McKay Correspondence via Gauge-Theoretic Morse Flow
| Authors | Jiajun Yan |
|---|---|
| Categories | |
| ArXiv ID | 2601.08195vv1 |
| URL | https://arxiv.org/abs/2601.08195 |
| License | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ |
Abstract
The McKay correspondence establishes a bijection between the cohomology of a minimal resolution and the irreducible representations of a finite subgroup $\Gamma \subset \text{SU}(2)$. While traditional proofs rely on static algebraic isomorphisms, we propose a dynamical framework grounded in gauge theory and Morse-Bott theory. We analyze an $S^1$-invariant Morse-Bott function on the minimal resolution, interpreting its gradient flow lines as $1$-parameter families of holonomy representations of flat connections from $\Gamma$ to $GL(R)$. We conjecture that the flow emanating from a critical submanifold converges asymptotically at the boundary to a specific irreducible representation of $\Gamma$. This dynamical process explicitly constructs the identification between the cohomology basis and the irreducible representations of $\Gamma$ prescribed by the McKay correspondence. We prove this conjecture for cyclic cases.
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"abstract": "The McKay correspondence establishes a bijection between the cohomology of a minimal resolution and the irreducible representations of a finite subgroup $\\Gamma \\subset \\text{SU}(2)$. While traditional proofs rely on static algebraic isomorphisms, we propose a dynamical framework grounded in gauge theory and Morse-Bott theory. We analyze an $S^1$-invariant Morse-Bott function on the minimal resolution, interpreting its gradient flow lines as $1$-parameter families of holonomy representations of flat connections from $\\Gamma$ to $GL(R)$. We conjecture that the flow emanating from a critical submanifold converges asymptotically at the boundary to a specific irreducible representation of $\\Gamma$. This dynamical process explicitly constructs the identification between the cohomology basis and the irreducible representations of $\\Gamma$ prescribed by the McKay correspondence. We prove this conjecture for cyclic cases.",
"arxiv_id": "2601.08195",
"authors": [
"Jiajun Yan"
],
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"math.DG",
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],
"license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
"title": "A Dynamical Framework for the McKay Correspondence via Gauge-Theoretic Morse Flow",
"url": "https://arxiv.org/abs/2601.08195",
"version": "v1"
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