In mathematics, an Erdélyi–Kober operator is a fractional integration operation introduced by Arthur Erdélyi (1940) and Hermann Kober (1940).
The Erdélyi–Kober fractional integral is given by
which generalizes the Riemann fractional integral and the Weyl integral.
Comparison
There is a similar operator now known as the Katugampola fractional operator which generalizes both the Riemann-Liouville and the Hadamard fractional integrals into a unique form.
References
Erdelyi–Kober operator Wikipedia(Text) CC BY-SA