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Definition 2024

isotopism ‎(plural isotopisms)

(mathematics) An instance of an isotopic state.
- 2015, Ágota Figula, “Geodesic loops with non-solvable left translation groups on $3$ -dimensional reductive spaces”, in (Please provide the title of the work):
  The other class ${\mathcal {C}}_{2}$ of loops consists of $3$ -dimensional connected differentiable left A-loops such that the group $G=PSL_{2}(\mathbb {R} )\ltimes \mathbb {R} ^{3}$ is the group topologically generated by the left translations The loops in this class can be represented by two real parameters $a,b$ and form precisely two isomorphism classes, which coincide with the isotopism classes.