Tori from spheres. An application of the string operator formalism

1989 ◽  
Vol 221 (3-4) ◽  
pp. 269-275
Author(s):  
R. Holman ◽  
Siddhartha Sen
1989 ◽  
Vol 78 (3) ◽  
pp. 337-340
Author(s):  
A. S. Losev ◽  
A. Yu. Morozov ◽  
A. A. Roslyi ◽  
S. L. Shatashvili

1989 ◽  
Vol 216 (1-2) ◽  
pp. 94-96 ◽  
Author(s):  
A. Losev ◽  
A. Morozov ◽  
A. Rosly ◽  
S. Shatashvili

1976 ◽  
Vol 31 (2) ◽  
pp. 231-236
Author(s):  
N. Ullah

1993 ◽  
Vol 08 (31) ◽  
pp. 5537-5561 ◽  
Author(s):  
HITOSHI KONNO

We consider the Feigin-Fuchs-Felder formalism of the SU (2)k× SU (2)l/ SU (2)k+l coset minimal conformal field theory and extend it to higher genus. We investigate a double BRST complex with respect to two compatible BRST charges, one associated with the parafermion sector and the other associated with the minimal sector in the theory. The usual screened vertex operator is extended to the BRST-invariant screened three-string vertex. We carry out a sewing operation of these vertices and derive the BRST-invariant screened g-loop operator. The latter operator characterizes the higher genus structure of the theory. An analogous operator formalism for the topological minimal model is obtained as the limit l=0 of the coset theory. We give some calculations of correlation functions on higher genus.


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