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On the KP Hierarchy, Algebra, and Conformal SL(2,R)/U(1) Model --- The Classical and Quantum Cases
Feng Yu, Yong-Shi Wu
We give a unified description of our recent results on the the inter-relationship between the integrable infinite KP hierarchy, nonlinear current algebra and con…
On the KP Hierarchy, Algebra, and Conformal SL(2,R)/U(1) Model: II. The Quantum Case
Feng Yu, Yong-Shi Wu
This paper is devoted to constructing a quantum version of the famous KP hierarchy, by deforming its second Hamiltonian structure, namely the nonlinear algebra.…
On the KP Hierarchy, Algebra, and Conformal SL(2,R)/U(1) Model: I. The Classical Case
Feng Yu, Yong-Shi Wu
In this paper we study the inter-relationship between the integrable KP hierarchy, nonlinear algebra and conformal noncompact coset model at the c…
The Complete Structure of the Cohomology Ring and Associated Symmetries in String Theory
Yong-Shi Wu, Chuan-Jie Zhu
We determine explicitly all structure constants of the whole chiral BRST cohomology ring in string theory including both the discrete states and tachyon states. This is made…
An Infinite Number of Commuting Quantum Charges in the Coset Model
Feng Yu, Yong-Shi Wu
The conformal non-compact coset model in two dimensions has been recently shown to embody a nonlinear current algebra, consisting of currents of spi…