%0 Journal Article %T Operator approach to the Gluing Theorem in String Field Theory %A Abdulmajeed Abdurrahman %A Jose Bordes %A Cristobal Lara %J Physics %D 1999 %I arXiv %R 10.1088/0305-4470/33/27/302 %X An algebraic proof of the Gluing Theorem at tree level of perturbation theory in String Field Theory is given. Some applications of the theorem to closed string non-polynomial action are briefly discussed %U http://arxiv.org/abs/hep-th/9902174v1