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does there exist a linear differential operator $l$ such that $lg(x,y) = \delta(x-y)$ ?
i'... pde greens-function fundamental-solution asked dec ' at : meowblingbling silver badge bronze badges votes answer views second order linear ode with polynomial coefficients i am currently stuck at solving an ode of the form egin{equation} =\psi''(x)+(arepsilon-(lpha x^ -eta)^ )\psi(x) \end{equation...
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