Mostrando 821 - 840 Resultados de 487,202 Para Buscar '"Free"', tiempo de consulta: 1.02s Limitar resultados
  1. 821
    por Pesando, I., Tollsten, A.K.
    Publicado 1992
    “…We extend the classical heterotic instanton solutions to all orders in $\alpha'$ using the equations of anomaly-free supergravity, and discuss the relation between these equations and the string theory $\beta$-functions.…”
    Enlace del recurso
    Enlace del recurso
  2. 822
  3. 823
  4. 824
  5. 825
  6. 826
    por Tollsten, A.K.
    Publicado 1993
    “…This supports the possibility that anomaly-free supergravity could provide the complete massless effective theory for the heterotic string.…”
    Enlace del recurso
    Enlace del recurso
  7. 827
  8. 828
    “…We present free field realizations for the associated vertex operator algebras of a number of four-dimensional $ \mathcal{N} $ = 2 superconformal field theories. …”
    Enlace del recurso
    Enlace del recurso
  9. 829
  10. 830
  11. 831
    “…Developed by an international team of experts, this book covers free space optical (FSO) communication technologies for realising high speed large-capacity terrestrial and aerospace communications.…”
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  12. 832
  13. 833
  14. 834
  15. 835
    “…Following this line of thought we investigate the family problem in a particular class of string solutions, namely the free fermionic string models. We find that the number of generations N_g is related to the index of the supersymmetry generator of the underlying N=2 internal superconformal field theory which is always present in any N=1 spacetime supersymmetric string vacuum. …”
    Enlace del recurso
    Enlace del recurso
  16. 836
  17. 837
  18. 838
  19. 839
  20. 840
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