caa a22 4500 469099402 CHVBK 20180323133040.0 cr unu---uuuuu 170328e19920901xx s 000 0 eng 10.1007/BF00420515 doi (NATIONALLICENCE)springer-10.1007/BF00420515 String branchings on complex tori and algebraic representations of generalized Krichever-Novikov algebras [Elektronische Daten] [Andreas Ruffing, Thomas Deck, Martin Schlichenmaier] The propagation differential for bosonic strings on a complex torus with three symmetric punctures is investigated. We study deformation aspects between two-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. Kluwer Academic Publishers, 1992 Ruffing Andreas Sektion Physik der Universität München, Theresienstraße 37, D-W-8000, München 2, Germany aut Deck Thomas Fakultät für Mathematik und Informatik, Universität Mannheim, A5, Postfach 103462, D-W-6800, Mannheim 1, Germany aut Schlichenmaier Martin Fakultät für Mathematik und Informatik, Universität Mannheim, A5, Postfach 103462, D-W-6800, Mannheim 1, Germany aut Letters in Mathematical Physics Kluwer Academic Publishers 26/1(1992-09-01), 23-32 0377-9017 26:1<23 1992 26 11005 https://doi.org/10.1007/BF00420515 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/BF00420515 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Ruffing Andreas Sektion Physik der Universität München, Theresienstraße 37, D-W-8000, München 2, Germany aut NATIONALLICENCE 700 1- Deck Thomas Fakultät für Mathematik und Informatik, Universität Mannheim, A5, Postfach 103462, D-W-6800, Mannheim 1, Germany aut NATIONALLICENCE 700 1- Schlichenmaier Martin Fakultät für Mathematik und Informatik, Universität Mannheim, A5, Postfach 103462, D-W-6800, Mannheim 1, Germany aut NATIONALLICENCE 773 0- Letters in Mathematical Physics Kluwer Academic Publishers 26/1(1992-09-01), 23-32 0377-9017 26:1<23 1992 26 11005 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer