Is there any possibily to solve the following integral
∫∞0arcsinh(a√x2+y2)cos(bx)dx
with a>0, y>0 and −π/2<arg(b)<0.
I assume, the result is connected to Bessel and Struve functions. Thank you.
Edit:
Using integration by parts with
∫cos(bx)dx=sin(bx)b
ddx(arcsinh(a√x2+y2))=−ax(x2+y2)√x2+y2+a2
and the limits
limx→0sin(bx)barcsinh(a√x2+y2)=0
limx→∞sin(bx)barcsinh(a√x2+y2)=0
Gives the integral
∫∞0ax(x2+y2)√x2+y2+a2sin(bx)bdx
if that makes anything simpler...
Edit2:
Mathematica tells me that the last integrand can be presented as the product of three G-functions. Inhere it is said that the integral of the product of three G-functions can be computed under certain restrictions. Sadly it is not mentioned which restrictions. Does anybody know anything about this?
It would be:
1x2+y2+a2=1√π√y2+a2MeijerG[{{12},{}},{{0},{}},x2y2+a2]
1x2+y2=1y2MeijerG[{{0},{}},{{0},{}},x2y2]
sin(bx)=√πMeijerG[{{},{}},{{12},{0}},x2b24]
which finally results in
ay2√y2+a2∫∞0xMeijerG[{{12},{}},{{0},{}},x2y2+a2]MeijerG[{{0},{}},{{0},{}},x2y2]MeijerG[{{},{}},{{12},{0}},x2b24]dx
The MeijerG are defined according to Mathematica syntax. Or (I hope I converted this correctly)
ay2√y2+a2∫∞0xG1,11,1(120x2y2+a2)G1,11,1(00x2y2)G1,00,2(−12,0x2b24)dx
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