Euler beta function

The Euler beta function has been defined by Euler around 1730 by the so called Euler beta integral

$B(x,y) = \int_0^1 t^{x-1} (1-t)^{y-1} d t = \frac{\Gamma(x)\Gamma(y)}{\Gamma(x+y)},\,\,\,\,\,\,Re x\gt 0, \,\,\,\,Re y \gt 0,$

which can be expressed in terms of the gamma function as stated.

A multidimensional generalization is the Selberg integral.

- G. E. Andrews, R. Askey, R. Roy,
*Special functions*, Enc. of Math. and its Appl.**71**, Cambridge Univ. Press 1999

Revised on October 10, 2011 20:50:58
by Zoran Škoda
(161.53.130.104)