CI-groups with respect to ternary relational structures: new examples

Edward Dobson, Pablo Spiga

Abstract


We find a sufficient condition to establish that certain abelian groups are not CI-groups with respect to ternary relational structures, and then show that the groups Z3 × Z22, Z7 × Z23, and Z5 × Z24 satisfy this condition. Then we completely determine which groups Z23 × Zp, p a prime, are CI-groups with respect to color binary and ternary relational structures. Finally, we show that Z25 is not a CI-group with respect to ternary relational structures.


Keywords


CI-group, ternary relation

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DOI: https://doi.org/10.26493/1855-3974.310.59f

ISSN: 1855-3974

Issues from Vol 6, No 1 onward are partially supported by the Slovenian Research Agency from the Call for co-financing of scientific periodical publications