Unitary minimal Liouville gravity and Frobenius manifolds

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Abstract: We study unitary minimal models coupled to Liouville gravity using Douglas string equation. Our approach is based on the assumption that there exist an appropriate solution of the Douglas string equation and some special choice of the resonance transformation such that necessary selection rules of the minimal Liouville gravity are satisfied. We use the connection with the Frobenius manifold structure. We argue that the flat coordinates on the Frobenius manifold are the most appropriate choice for calculating correlation functions. We find the appropriate solution of the Douglas string equation and show that it has simple form in the flat coordinates. Important information is encoded in the structure constants of the Frobenius algebra. We derive these structure constants in the canonical coordinates and in the physically relevant domain in the flat coordinates. We find the leading terms of the resonance transformation and express the coefficients of the resonance transformation in terms of Jacobi polynomials.

Original languageEnglish
Article number129
JournalJournal of High Energy Physics
Issue number7
StatePublished - Jul 2014
Externally publishedYes


  • 2D Gravity
  • Conformal Field Models in String Theory
  • Integrable Hierarchies
  • Matrix Models


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