Intertwining operator and integrable hierarchies from topological strings

Abstract

In [1], Nakatsu and Takasaki have shown that the melting crystal model behind the topological strings vertex provides a tau-function of the KP hierarchy after an appropriate time deformation. We revisit their derivation with a focus on the underlying quantum $W_{1+\infty }$ symmetry. Specifically, we point out the role played by automorphisms and the connection with the intertwiner - or vertex operator - of the algebra. This algebraic perspective allows us to extend part of their derivation to the refined melting crystal model, lifting the algebra to the quantum toroidal algebra of $\mathfrak{gl}(1)$ (also called Ding-Iohara-Miki algebra). In this way, we take a first step toward the definition of deformed hierarchies associated to A-model refined topological strings.

29 pages (v2: preprint number inserted)

References in corpus (8)

• The Refined Topological Vertex
• Toda Theories, Matrix Models, Topological Strings, and N=2 Gauge Systems
• Melting Crystal, Quantum Torus and Toda Hierarchy
• Notes on Ding-Iohara algebra and AGT conjecture
• Toric Calabi-Yau threefolds as quantum integrable systems. R-matrix and RTT relations
• Reflection states in Ding-Iohara-Miki algebra and brane-web for D-type quiver
• Kernel function and quantum algebras
• Mixed network calculus