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I need help to solve the following integral equation:

f(x,y,w)=137.03.*y.^2./((0.238.*exp(0.067.*y.^2)+1).*(w-5.26.*x.*y-2.63).*(w-5.26.*x.*y+2.63))=1+8478./(10828-w.^2-1.13.*j.*w)

xmin=-1, xmax.=1, ymin=0, ymax=inf (nad can be taken 500 because the function decreases rapidly)

I want to find w which is complex number.

I tried the following code:

f=@(w) dblquad(@(x,y) 137.03.*y.^2./((0.238.*exp(0.067.*y.^2)+1).*(w-5.26.*y.*x-2.63).*(w-5.26.*y.*x+2.63)),-1,1,0,100)-1-8478./(10828-w.^2-j.*w.*1.13)

V=fsolve(f,160)

There are some singularities. How can I solve the problem

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# Solving integral equation with double ingegrals and singularities

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