Infinite Dimensional Geometry and Quantum Field Theory of Strings. II.   Infinite Dimensional Noncommutative Geometry of a Self-Interacting String   Field
  A geometric interpretation of quantum self-interacting string field theory is given. Relations between various approaches to the second quantization of an interacting string are described in terms of the geometric quantization. An algorithm to construct a quantum nonperturbative interacting string field theory in the quantum group formalism is proposed. problems of a metric background (in)dependence are discussed. 
D.Juriev (D.V.Yur'ev)