On the construction of the correlation numbers in Minimal Liouville Gravity

Konstantin Aleshkin, Vladimir Belavin

Research output: Contribution to journalArticlepeer-review

10 Scopus citations


The computation of the correlation numbers in Minimal Liouville Gravity involves an integration over moduli spaces of complex curves. There are two independent approaches to the calculation: the direct one, based on the CFT methods and Liouville higher equations of motion, and the alternative one, motivated by discrete description of 2D gravity and based on the Douglas string equation. However these two approaches give rise to the results that are not always consistent among themselves. In this paper we explore this problem. We show that in order to reconcile two methods the so-called discrete terms in the operator product expansion in the underlying Liouville theory must be properly taken into account. In this way we propose modified version of the expression for four-point correlation number and find full agreement between direct and alternative approaches. Our result allows to consider correlators without any restrictions on the number of conformal blocks contributing to the matter sector correlation function.

Original languageEnglish
Article number142
JournalJournal of High Energy Physics
Issue number11
StatePublished - 1 Nov 2016
Externally publishedYes


  • 2D Gravity
  • Conformal Field Models in String Theory
  • Conformal Field Theory


Dive into the research topics of 'On the construction of the correlation numbers in Minimal Liouville Gravity'. Together they form a unique fingerprint.

Cite this