In mathematics, the Bessel potential is a potential (named after Friedrich Wilhelm Bessel) similar to the Riesz potential but with better decay properties at infinity. If s is a complex number with positive real part then the Bessel potential of order s is the operator ( I − Δ ) − s / 2 {\displaystyle (I-\Delta )^{-s/2}} where Δ is the Laplace operator and the fractional power is defined using Fourier transforms.
In mathematics, the Bessel potential is a potential (named after Friedrich Wilhelm Bessel) similar to the Riesz potential but with better decay properties at infinity. If s is a complex number with positive real part then the Bessel potential of order s is the operator ( I − Δ ) − s / 2 {\displaystyle (I-\Delta )^{-s/2}} where Δ is the Laplace operator and the fractional power is defined using Fourier transforms.
Source: Wikipedia "Bessel potential" · CC BY-SA 4.0
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