HyperDic: direct_sum

English > 1 sense of the expression direct sum:
NOUNgroupdirect suma union of two disjoint sets in which every element is the sum of an element from each of the disjoint sets
English > direct sum: 1 sense > noun 1, group
MeaningA union of two disjoint sets in which every element is the sum of an element from each of the disjoint sets.
Broaderunion, sum, joinA set containing all and only the members of two or more given sets
Spanishsuma directa
Catalansuma directa

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