Example 16.2: on ℝ, ψ(x)ₙ = e^{−x²/2} xⁿ/√n! into ℓ² has ⟨ψ(x), ψ(x')⟩ = e^{−(x−x')²/2}; the Gaussian kernel e^{−‖x−x'‖²/(2σ)} on ℝⁿ is a kernel

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Example 16.2: on ℝ, ψ(x)ₙ = e^{−x²/2} xⁿ/√n! into ℓ² has ⟨ψ(x), ψ(x')⟩ = e^{−(x−x')²/2}; the Gaussian kernel e^{−‖x−x'‖²/(2σ)} on ℝⁿ is a kernel · Prove2Me