self-commutator

noun

Given a bounded linear operator B and its adjoint B^*, the self-commutator is B^*B-BB^*.

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Meanings

nounself-commutator (plural self-commutators)

plural self-commutators

  1. mathematicsGiven a bounded linear operator B and its adjoint B^*, the self-commutator is B^*B-BB^*.

Origin

From self- + commutator.

Full word history & related roots →
Cite this entry
APA

self-commutator. (n.d.). In WatkinsX Dictionary. Retrieved November 3, 2026, from https://dictionary.watkinsx.com/word/self-commutator

MLA

“self-commutator.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/self-commutator. Accessed November 3, 2026.

Chicago

WatkinsX Dictionary, s.v. “self-commutator,” accessed November 3, 2026, https://dictionary.watkinsx.com/word/self-commutator.

Source: self-commutator on Wiktionary, CC BY-SA 4.0.