Relationship between the Comma Theory and Witten's String Field Theory (I)

摘要

The comma representation of interacting string field theory is further elucidated. The proof, that the Witten's vertex solves the comma overlap equations, is established. In this representation associativity of the star algebra is seen to hole. The relationship of the symmetry K in the standard formulation of Witten's string field theory (WSFT) to that in the comma theory is discussed.