Fig 5. The normalized depolarization (measured at the vertex) of domains with parabolic boundaries versus non-dimensional curvature.

Data-points for positive curvatures (cλ > 0) were calculated using unstructured linear finite elements. Two sets of curves, corresponding to equal conductivities (solid line) and physiological conductivities (dashed line), are shown. Full bidomain results in a truncated domain are also shown (dotted line).