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Colored sl(N) homology and SU(N) representations

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Abstract

We provide the first complete computations of colored sl(N) homology for a nontrivial knot. In doing so, we show that the colored sl(N) homology of the trefoil labeled by an exterior power of the defining representation is isomorphic to the cohomology of a closed manifold naturally associated to the trefoil. This manifold is the set of homomorphisms from the fundamental group of the complement of the trefoil to SU(N) that send meridians to a particular conjugacy class depending on the label. We also provide complete computations and analogous isomorphisms for the first nontrivial link, the Hopf link.

Original languageEnglish (US)
Article number110314
JournalAdvances in Mathematics
Volume474
DOIs
StatePublished - Jul 2025

All Science Journal Classification (ASJC) codes

  • General Mathematics

Keywords

  • Colored link homology
  • Khovanov Rozansky homology
  • SU(N) representations

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