Nonexistence of the 4-vertex condition for odd-order bicirculants
Prove that no n-bicirculant with odd n greater than 5 satisfies the 4-vertex condition.
References
In fact, we believe that this statement holds for all n > 5 odd.
— On 3-isoregularity of multicirculants
(2501.18217 - Kutnar et al., 30 Jan 2025) in Section 1, final introductory remark, p. 3