Integrable structure, W-symmetry and AGT relation Auteur(s): Fateev V., Litvinov A. V. (Document sans référence bibliographique) 2011-11-15Texte intégral en Openaccess : Ref HAL: hal-00654717_v1 Ref Arxiv: 1109.4042 Ref. & Cit.: NASA ADS Exporter : BibTex | endNote Résumé: In these notes we consider integrable structure of the conformal field theory with the algebra of symmetries $\mathcal{A}=W_{n}\otimes H$, where $W_{n}$ is $W-$algebra and $H$ is Heisenberg algebra. We found the system of commuting Integrals of Motion with relatively simple properties. In particular, this system has very simple spectrum and the matrix elements of special primary operators between its eigenstates have nice factorized form coinciding exactly with the contribution of the bifundamental multiplet to the Nekrasov partition function for U(n) gauge theories. |