A full rational CFT, consistent on all orientable world sheets, can be constructed from the
underlying chiral CFT, ie, a vertex algebra, its representation category C, and the system of …

We discuss some basic properties of the open string on the symmetric product which is
supposed to describe the open string field theory in discrete light-cone quantization (DLCQ) …

The string theory on symmetric product describes the second-quantized string theory. The
development for the bosonic open string was discussed in the previous work. In this paper …

We investigate some aspects of the relationship between matrix string theory and light-cone
string field theory by analysing the correspondence between the two-loop thermal partition …

We compute the two-loop contributions to the free energy in the null compacti¯ cation of
perturbative string theory at¯ nite temperature. The cases of bosonic, Type II and heterotic …