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Extensions of the endomorphism algebra of weak comodule algebras

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  • المؤلفون: Wang, Z.; Chen, Y.; Zhang, L.
  • المصدر:
    Mathematical Notes; September 2014, Vol. 96 Issue: 3-4 p342-352, 11p
  • معلومة اضافية
    • نبذة مختصرة :
      Let Hbe a weak Hopf algebra, and let A/Bbe a weak right H-Galois extension. In this paper, we mainly discuss the extension of the endomorphism algebra of a module over A. A necessary and sufficient condition for such an extension of the endomorphism algebra to be weak H-Galois is obtained by using Hopf-Galois theory and Morita theory.