From: Further results on robust stability for uncertain neutral systems with distributed delay
r
1
2
3
4
5
6
[32]
1.12
0.93
0.77
0.65
0.55
0.43
[33]
1.58
1.20
0.95
0.64
0.51
[34]
1.47
1.14
0.80
0.68
0.50
[35]
1.78
1.30
0.99
0.62
0.47
[41]
1.90
1.49
1.34
1.07
0.91
Theorem 3.1
2.10
1.71
1.41
1.25
1.05