Neumann 1877 series expansion of the resolvent operator (I − λK)⁻¹ for a bounded linear operator K with |λ|·‖K‖ < 1: (I − λK)⁻¹ = Σ_{n=0}^{∞} λⁿ·Kⁿ. Applied to integral equations φ = g + λ·Kφ: the resolvent kernel R(x, y; λ) is the…
Neumann 1877 series expansion of the resolvent operator (I − λK)⁻¹ for a bounded linear operator K with |λ|·‖K‖ < 1: (I − λK)⁻¹ = Σ_{n=0}^{∞} λⁿ·Kⁿ. Applied to integral equations φ = g + λ·Kφ: the resolvent kernel R(x, y; λ) is the…