[Retracted] The MGHSS for Solving Continuous Sylvester Equation AX + XB = C

Table 1

Comparison of HSS and MGHSS in terms of and .

r	HSS						MGHSS
	0.01		0.1		1.0		0.01		0.1		1.0
	n = 8	12	0.002	13	0.007	11	0.007	11	0.001	11	0.001	9	0.004
n = 16	20	0.012	23	0.013	15	0.017	19	0.003	20	0.004	16	0.009
n = 32	44	0.076	43	0.080	32	0.055	43	0.014	41	0.074	23	0.028
n = 64	86	1.556	73	0.543	44	0.332	72	0.622	68	0.494	29	0.077
n = 128	170	10.114	119	13.956	69	1.547	78	4.469	79	4.870	51	2.435
n = 256	335	66.758	175	34.734	83	14.378	78	27.889	79	29.082	74	11.475