Valuation Group
Let 
be a valuated field. The valuation group 
is defined to be the set
with the group operation being multiplication. It is a Subgroup of the Positive Real Numbers, under multiplication.
- 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
- Four-Vertex Theorem
- Fox's H-Function
- F-Polynomial
- Frac
- Fractal
- Fractal Dimension
- Fractal Land
- Fractal Process
- Fractal Sequence
- Fractal Valley
- Fraction
- Fractional Calculus