Algebra and Discrete Mathematics - №3 - 2003http://hdl.handle.net/123456789/402024-03-28T17:27:12Z2024-03-28T17:27:12ZOn a group theoretical construction of expanding graphsUstimenko, Vasyl A.http://hdl.handle.net/123456789/712020-01-24T21:25:17Z2003-08-05T00:00:00ZOn a group theoretical construction of expanding graphs
Ustimenko, Vasyl A.
2003-08-05T00:00:00ZOn the separability of the restriction functorTheohari-Apostolidi, Th.Vavatsoulas, H.http://hdl.handle.net/123456789/702020-01-24T21:24:56Z2003-06-26T00:00:00ZOn the separability of the restriction functor
Theohari-Apostolidi, Th.; Vavatsoulas, H.
2003-06-26T00:00:00ZThe commutator Hopf Galois extensionsSzeto, GeorgeXue, Lianyonghttp://hdl.handle.net/123456789/692020-01-24T21:27:30Z2003-03-28T00:00:00ZThe commutator Hopf Galois extensions
Szeto, George; Xue, Lianyong
Let H be a finite dimentional Hopf algebra over
a field k and H* the dual Hopf algebra of H. Then a commutator
right H*-Galois extension B of BH is characterized in terms of the
smash product B#H and some relationships between such a B and
the Hopf Galois Azumaya or Hopf Galois Hirata extensions are also
given.
2003-03-28T00:00:00ZH− and R−cross-sections of the full finite semigroup TnPyekhtyeryev, Vasylhttp://hdl.handle.net/123456789/682020-01-24T21:25:18Z2003-07-01T00:00:00ZH− and R−cross-sections of the full finite semigroup Tn
Pyekhtyeryev, Vasyl
All H− and R− cross-sections of the full finite
semigroup Tn of all transformations of the set N = {1, 2, . . . , n}
are described.
2003-07-01T00:00:00Z