Next: Columns with Discrete Symmetry Up: Columns with Continuous Symmetry Previous: Fluted Columns Spiral Columns -- Two TypesThere are two types of spirals -- both of which have twisted translation symmetry. There are the spirals that are symmetric when the column is rotated by in a plane containing the axis of the cylinder ( )and those that do not have this symmetry ( ). See Figures 8 and 9.
Next: Columns with Discrete Symmetry Up: Columns with Continuous Symmetry Previous: Fluted Columns Marty Golubitsky 2001-01-29 |