摘要
The refined topological vertex of Iqbal-Kozcaz-Vafa has been investigated from the viewpoint of the quantum algebra of type W1+∞by Awata,Feigin,and Shiraishi.They introduced the trivalent intertwining operator?which is normal ordered along with some prefactors.We manage to establish formulas from the infinite operator product of the vertex operators and the generalized ones to restore this prefactor,and obtain an explicit formula for the vertex realization of the topological vertex as well as the refined topological vertex.
基金
Supported by the National Natural Science Foundation of China under Grant No 11031005
and the Beijing Municipal Education Commission Foundation under Grant Nos KZ201210028032 and KM201210028006。
