# Tricky supergaussian integral

1. Nov 4, 2011

### boxkar

I am trying to solve the integral of a supergaussian multiplied by a Rician distribution.

Basically, I am trying to solve an integral of the form

$\int_0^{\infty}e^{-ax^4}e^{-bx^2}xI_0(cx)dx$

I have no particular reason to believe this has a closed form.
However, I have solved a normal gaussian times a Rician; however, that involved completing the square and the integral being a valid Rician, thus summing to 1 and leaving multipliers, which will not generalize to higher order.

I have tried a few methods, including substituting u = x^2 and then Laplace transform.