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On the relation between one-sided duoness and commutators

open access: yesOpen Mathematics
This article studies the structure of rings RR over which the 2×22\times 2 upper triangular matrix rings with the same diagonal are right duo, denoted by D2(R){D}_{2}\left(R).
Kim Nam Kyun, Lee Yang
doaj   +1 more source

Satisfiability of commutative vs. non-commutative CSPs

open access: yes
v2: the main result now omits one case, but also includes infinite-dimensional operators v3: more discussion and comments on related work; v4: full version of an ICALP 2025 ...
Bulatov, Andrei A., Živný, Stanislav
openaire   +3 more sources

AUTOMORPHISM COMMUTATORS [PDF]

open access: yesProceedings of the National Academy of Sciences, 1929
openaire   +2 more sources

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