direct sum(redirected from Direct sum of modules)
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Related to Direct sum of modules: Direct product of modules
direct sum[də¦rekt ′səm]
If each of the sets in a finite direct product of sets has a group structure, this structure may be imposed on the direct product by defining the composition “componentwise”; the resulting group is called the direct sum.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.