Friedel's law, named after Georges Friedel, is a property of Fourier transforms of real functions. Given a real function f ( x ) {\displaystyle f(x)} , its Fourier transform F ( k ) = ∫ − ∞ + ∞ f ( x ) e i k ⋅ x d x {\displaystyle F(k)=\int _{-\infty }^{+\infty }f(x)e^{ik\cdot x}dx} has the following properties.
Friedel's law, named after Georges Friedel, is a property of Fourier transforms of real functions. Given a real function f ( x ) {\displaystyle f(x)} , its Fourier transform F ( k ) = ∫ − ∞ + ∞ f ( x ) e i k ⋅ x d x {\displaystyle F(k)=\int _{-\infty }^{+\infty }f(x)e^{ik\cdot x}dx} has the following properties.
Source: Wikipedia "Friedel's law" · CC BY-SA 4.0
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