From: Improved LMI-based stability conditions for a competitive Lotka–Volterra system with time-varying delays
\({d_{11}=d_{12}=d_{21}=d_{22}=d}\)
0
0.1
0.3
0.5
0.7
0.9
≥1
[24]
1.43
1.37
1.25
1.06
0.90
0.87
Theorem 3
1.56
1.52
1.42
1.30
1.13
0.95
0.94
Theorem 4
1.32
1.21
1.20