Dominions in decomposable varieties

نویسندگان

  • Arturo Magidin
  • A. Magidin
چکیده

Dominions, in the sense of Isbell, are investigated in the context of decomposable varieties of groups. An upper and lower bound for dominions in such a variety is given in terms of the two varietal factors, and the internal structure of the group being analyzed. Finally, the following result is established: If a variety N has instances of nontrivial dominions, then for any proper subvariety Q of Group , NQ also has instances of nontrivial dominions. Section

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تاریخ انتشار 2009