We determine the number of nonequivalent 2-color chord diagrams of order n with one black cycle under the action of two groups: C_n – a cyclic group of order n, and D_{2n} – a dihedral group of order 2n.
Бібліотека методичних матеріалів
We determine the number of nonequivalent 2-color chord diagrams of order n with one black cycle under the action of two groups: C_n – a cyclic group of order n, and D_{2n} – a dihedral group of order 2n.
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