... i represents an index of the sampling frequencies ωiwithin the bandwidth ωmin≤ωi≤ ωmax and n denotes the total number of sampling frequencies. Therefore, the quality of the approximation ... 1–7. In the last decades the application of FC verified a large development in the areas of physics and engineering and considerable research about a multitude of applications emerged such as, ... Methods of Their Solution and Some of Their Applications, vol. 198 of Mathematics in Science and Engineering, Academic Press, San Diego, Calif, USA, 1999.5 A. A. Kilbas, H. M. Srivastava, and...