Browsing by Subject "isomorphism problem"

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  • Isomorphisms of formal matrix incidence rings 
    Tapkin D. (2017)
    © 2017, Allerton Press, Inc. Abstract—In a paper published in 2008 P. A. Krylov showed that formal matrix rings Ks(R) and Kt(R) are isomorphic if and only if the elements s and t differ up to an automorphism by an invertible ...
  • Isomorphisms of Formal Matrix Rings with Zero Trace Ideals 
    Tapkin D. (2018)
    © 2018, Pleiades Publishing, Ltd. We obtain explicit criteria for the isomorphism of formal matrix rings with zero trace ideals. In particular, we consider the case of formal upper-triangular matrix rings with semicentral ...

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