Definition:Bessel Function/Second Kind

Definition
A Bessel function of the second kind of order $n$ is a Bessel function which is singular at the origin.

It is usually denoted $\map {Y_n} x$, where $x$ is the dependent variable of the instance of Bessel's equation to which $\map {Y_n} x$ forms a solution.

Also known as
Some sources use $p$ to denote the order of the Bessel function.

Also see

 * Definition:Bessel Function of the First Kind


 * Definition:Modified Bessel Function of the First Kind
 * Definition:Modified Bessel Function of the Second Kind