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Figure 1
[{\tilde V}_{\rm LP}(k)] for c = 1 and q = k5 and k12: note that [{\tilde V}_{\rm LP}(k)] is positive for all k except k = 1 or q, where it is zero. Also note that the barrier between the minima when q = k12 is significantly larger than the barrier when q = k5. This disparity is important for the study of the finite-c case discussed in Section 4[link].

IUCrJ
Volume 5| Part 3| May 2018| Pages 247-268
ISSN: 2052-2525
https://doi.org/10.1107/S2052252518001161