On associative spectra of operations
The distance of an operation from being associative can be "measured" by its associative spectrum, an appropriate sequence of positive integers. Associative spectra were introduced in a publication by B. Csákány and T. Waldhauser in 2000 for binary operations (see [1]). We generalize this...
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Dokumentumtípus: | Cikk |
Megjelent: |
2009
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Sorozat: | ACTA SCIENTIARUM MATHEMATICARUM - SZEGED
75 No. 3-4 |
mtmt: | 1949850 |
Online Access: | http://publicatio.bibl.u-szeged.hu/17337 |
Tartalmi kivonat: | The distance of an operation from being associative can be "measured" by its associative spectrum, an appropriate sequence of positive integers. Associative spectra were introduced in a publication by B. Csákány and T. Waldhauser in 2000 for binary operations (see [1]). We generalize this concept to 2 ≤ p-ary operations, interpret associative spectra in terms of equational theories, and use this interpretation to find a characterization of fine spectra, to construct polynomial associative spectra, and to show that there are continuum many different spectra. Furthermore, an equivalent representation of bracketings is studied. © Bolyai Institute, University of Szeged. |
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Terjedelem/Fizikai jellemzők: | 433-456 |
ISSN: | 0001-6969 |