Wallpaper Groups

Symmetry group 15 (p3m1)

This group is similar to the last in that it contains reflections and order-3 rotations. The axes of the reflections are again inclined at 60 to one another, but for this group all of the centers of rotation lie on the reflection axes. The lattice is hexagonal. Again, a fundamental region for the symmetry group is one-sixth of an equilateral triangle of the lattice.

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© 1994, 1997.

David E. Joyce
Department of Mathematics and Computer Science
Clark University
Worcester, MA 01610

These files are located at http://aleph0.clarku.edu/~djoyce/wallpaper/