direct sum

di·rect sum

D d

Transcription

- US Pronunciation
- US IPA
- [dih-rekt, dahy- suhm]
- /dɪˈrɛkt, daɪ- sʌm/

- US Pronunciation
- US IPA
- [dih-rekt, dahy- suhm]
- /dɪˈrɛkt, daɪ- sʌm/

Definitions of direct sum words

noun direct sum a composition of two disjoint sets, as vector spaces, such that every element in the composition can be written uniquely as the sum of two elements, one from each of the given sets. 1
noun direct sum (mathematics) coproduct in some categories, like abelian groups, topological spaces or modules. 0

See all 2 definitions of direct sum

Information block about the term

Origin of direct sum

First appearance:

before 1925

One of the 11% newest English words

First recorded in 1925-30

Historical Comparancy

Parts of speech for Direct sum

noun

adjective

verb

adverb

pronoun

preposition

conjunction

determiner

exclamation

Full grammatical hierarchy of Direct sum

direct sum popularity

A pretty common term. Usually people know it’s meaning, but prefer to use a more spread out synonym. About 36% of English native speakers know the meaning and use word.

According to our data about 63% of words is more used. This is a rare but used term. It occurs in the pages of specialized literature and in the speech of educated people.

direct sum usage trend in Literature

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