I'm a bit stumped at how to approach this set of non-linear differential equations. Could someone point me in the right direction in solving them?
System of equations:
$$\dot{p}_{11}(t)=4p_{12}^2(t)+4p_{12}(t)-2$$ $$\dot{p}_{12}(t)=-p_{11}(t)-p_{12}(t)+2p_{22}(t)+4p_{12}(t)p_{22}(t)-3$$ $$\dot{p}_{22}(t)=-2p_{12}(t)-2p_{22}(t)+4p_{22}^2(t)-5$$
Final conditions:
$$p_{11}(5)=1$$ $$p_{12}(5)=0.5$$ $$p_{22}(5)=2$$
Another way to express this system of equations is:
$$f'(t)=4g^2(t)+4g(t)-2$$ $$g'(t)=-f(t)-g(t)+2h(t)+4g(t)h(t)-3$$ $$h'(t)=-2g(t)-2h(t)+4h^2(t)-5$$
Where
$$f(5)=1$$ $$g(5)=0.5$$ $$h(5)=2$$
Thank you all in advance for your help. I deeply appreciate it.