Isohedral Tiling
Let 
be the group of symmetries which map a Monohedral Tiling 
onto itself. The TransitivityClass of a given tile T is then the collection of all tiles to which T can be mapped by one of the symmetries of . If has 
Transitivity Classes, then is said to be -isohedral. Berglund (1993)gives examples of -isohedral tilings for 
, 2, and 4.
References
Berglund, J. ``Is There a Grünbaum, B. and Shephard, G. C. ``The 81 Types of Isohedral Tilings of the Plane.'' Math. Proc. Cambridge Philos. Soc. 82, 177-196, 1977.-Anisohedral Tile for 
?'' Amer. Math. Monthly 100, 585-588, 1993.
- Fourier Matrix
- Fourier-Mellin Integral
- Fourier Series
- Fourier Series--Power Series
- Fourier Series--Right Triangle
- Fourier Series--Square Wave
- Fourier Series--Triangle
- Fourier Series--Triangle Wave
- Fourier Sine Series
- Fourier Sine Transform
- Fourier-Stieltjes Transform
- Fourier Transform
- Fourier Transform--1
- Fourier Transform--Cosine
- Fourier Transform--Delta Function
- Fourier Transform--Exponential Function
- Fourier Transform--Gaussian
- Fourier Transform--Heaviside Step Function
- Fourier Transform Inverse Function
- Fourier Transform--Lorentzian Function
- Fourier Transform--Ramp Function
- Fourier Transform--Rectangle Function
- Fourier Transform--Sine
- Four Travelers Problem
- Four-Vector