Definitions from Wiktionary (direct sum)
▸ noun: (mathematics) coproduct in some categories, like abelian groups, topological spaces or modules
▸ noun: (linear algebra) A linear sum in which the intersection of the summands has dimension zero. Equivalently, a linear sum of two subspaces, any vector of which can be expressed uniquely as a sum of two vectors: one vector belonging to the first subspace, and the other vector belonging to the second subspace.
▸ noun: (linear algebra) A block diagonal matrix interpreted as having its non-zero blocks (which are square matrices) as summands.
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▸ noun: (mathematics) coproduct in some categories, like abelian groups, topological spaces or modules
▸ noun: (linear algebra) A linear sum in which the intersection of the summands has dimension zero. Equivalently, a linear sum of two subspaces, any vector of which can be expressed uniquely as a sum of two vectors: one vector belonging to the first subspace, and the other vector belonging to the second subspace.
▸ noun: (linear algebra) A block diagonal matrix interpreted as having its non-zero blocks (which are square matrices) as summands.
Similar:
direct product,
biproduct,
sumset,
relation,
coproduct,
direct limit,
ultraproduct,
semigroupoid,
semidirect product,
bicrossproduct,
more...
Types:
Phrases:
▸ Words similar to direct sum
▸ Usage examples for direct sum
▸ Idioms related to direct sum
▸ Wikipedia articles (New!)
▸ Words that often appear near direct sum
▸ Rhymes of direct sum
▸ Invented words related to direct sum