Numerical Identification of Multiparameters in the Space Fractional Advection Dispersion Equation by Final Observations

Table 5

Influence of numerical differential step on the algorithm with 𝜇=0.1.

τ	a ^inv	Err	𝑇cpu/𝑗
≥0.9	Divergent
0.85	(1.6001245, 0.99973957, 0.99978970)	1.6724819𝑒−4	6.563/36
0.8	(1.6001340, 0.99969424, 0.99977646)	1.8814739𝑒−4	6.453/35
0.7	(1.6001260, 0.99971463, 0.99979024)	1.7604399𝑒−4	6.172/34
0.6	(1.6001232, 0.99972209, 0.99979564)	1.7153187𝑒−4	5.937/32
0.5	(1.6001146, 0.99974254, 0.99981050)	1.5903046𝑒−4	5.359/29
0.4	(1.6000995, 0.99977749, 0.99983595)	1.3759274𝑒−4	3.672/20
0.3	(1.5999046, 1.0002119, 1.0001567)	1.3124502𝑒−4	4.984/27
0.2	(1.5999303, 1.0001532, 1.0001138)	9.5146183𝑒−5	5.203/28
0.1	(1.5999617, 1.0000825, 1.0000618)	5.1475320𝑒−5	4.375/24
0.05	(1.5999773, 1.0000477, 1.0000361)	2.9959973𝑒−5	4.484/24
0.04	(1.5999772, 1.0000475, 1.0000360)	2.9877074𝑒−5	5.344/29
≤0.03	Divergent