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String branchings and complex tori and algebraic representations of generalized Krichever-Novikov algebras | | Andreas Ruffing
; Thomas Deck
; Martin Schlichenmaier
; | | Date: |
27 Jul 1992 | | Journal: | Lett.Math.Phys. 26 (1992) 23-32 | | Subject: | hep-th | | Abstract: | The propagation differential for bosonic strings on a complex torus with three symmetric punctures is investigated. We study deformation aspects between two point and three point differentials as well as the behaviour of the corresponding Krichever-Novikov algebras. The structure constants are calculated and from this we derive a central extension of the Krichever-Novikov algebras by means of b-c systems. The defining cocycle for this central extension deforms to the well known Virasoro cocycle for certain kinds of degenerations of the torus. AMS subject classification (1991): 17B66, 17B90, 14H52, 30F30, 81T40 | | Source: | arXiv, hep-th/9207088 | | Services: | Forum | Review | PDF | Favorites | |
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