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 Feb11 revised double integral equal to modified Bessel function corrected definition of bessel function and Integral Feb11 suggested approved edit on double integral equal to modified Bessel function Feb8 awarded Teacher Feb6 revised Green's function in a moving frame for a constant heat source deleted 2 characters in body; edited tags Feb5 comment 1D Green's function: from interval to infinite line @O.L., please look this math.stackexchange.com/questions/1135311/… Feb5 asked Green's function in a moving frame for a constant heat source Nov25 accepted solvability condition for differential operator Nov25 comment solvability condition for differential operator @TZakrevskiy, from your comment now I understand what is meaning of self-adjoint differential operator. Honestly I could not understand answer given by you at all because my ineptness in this field. Anyway thanks for your answer and explanation..! Nov25 answered solvability condition for differential operator Nov24 revised solvability condition for differential operator edited tags Nov24 revised solvability condition for differential operator deleted 6 characters in body Nov24 asked solvability condition for differential operator Oct1 comment finding a parameter to match the solution asymptotically @JuliánAguirre, If I solve the equation with boundary conditions $y'(-3) =0$ and $y'(3) = 1$ in Mathematica, fine tuning of parameter $b$ shows that, I can make $y(-3)$ as small as possible. But if I start with boundary conditions $y'(-3) =0$ and $y(-3) = 0$, Mathematica declares problem as ill conditioned. Oct1 comment finding a parameter to match the solution asymptotically @JuliánAguirre, that x axis is an asymptote to y(x) as x tend to -3. Oct1 asked finding a parameter to match the solution asymptotically Sep10 revised Finding family of curve for given asymptotes edited tags Sep10 asked Finding family of curve for given asymptotes Aug22 asked solution of $y' + y^2 = \varphi^2(x)$ Aug19 asked Solving second order differential equation numerically with values given at intermediate points. Aug19 accepted Proof of definite integral is finite