The following is from an article I'm reading and is the conditional density of a random variable that is distributed according to a gamma distribution, conditional on the value of a parameter $t$.
$f(x\mid t)=\frac1{\Gamma(q)}\frac{q}{g(t)}\left\{\frac{qx}{g(t)}\right\}^{q-1}e^{-qx/g(t)}\qquad\text{for}\qquad 0\leq x<\infty$
I am having trouble interpreting the expression. Specifically:
What do the curly braces mean? And, how do I translate the $q$ and the $g(t)$ into the $k$ and $\theta$ used as parameters on the Wikipedia page?