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. Author manuscript; available in PMC: 2015 Oct 1.
Published in final edited form as: Phys Rep. 2014 Oct 1;543(1):1–60. doi: 10.1016/j.physrep.2014.05.001

Figure 22.

Figure 22

(a) An in-plane polar field, m̂(υ) = a t̂1 + b t̂2, defined on the tangent plane of vertex υ. (b) A discretized membrane, of spherical topology, decorated with an in-plane nematic director field.