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About Nonlinear Systems
Theoretic and applied results in nonlinear system theory, nonlinear models and nonlinear models.
I have a nonlinear system of first order delay differential equations and I'm studying its stability using a quadratic Lyapunov function and I got that
dV[x(t)]/dt= 2x_{2}(t){(1/t)x_{1}(t1)x_{1}(t)+(3/t)x_{2}(t3)3x_{1} ^2(t)}
I want to determinate the stability region which means dV[x(t)]/dt<0, using matlab. can any one help me in this problem?