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    • Test modules for flatness 

      Alizade, R.; Durgun, Y. (C E D A M SPA CASA EDITR DOTT ANTONIO MILANI, 2017)
      A right R-module M is said to be a test module for flatness (shortly: an f-test module) provided for each left R-module N, Tor(M,N) = 0 implies N is flat. f-test modules are a flat version of the Whitehead test modules for ...