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Global solution to inhomogeneous Bernoulli ODE 
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#1
Feb213, 06:59 PM

P: 2

Hi everyone,
I have an inhomogeneous Bernoulli type ODE given by [itex] u'(t) = \kappa u(t) + \ell(t) u^{\gamma}(t) + v(t),\ \ \ u(T)=b>0,...(1) [/itex] where [itex] t\in[0,T],\ \ \gamma\in (0,1) [/itex]. My concern is that how to prove the existence and uniqueness of the solution u(t) for all [itex]t\in [0,T] .[/itex] Thanks very much. 


#2
Feb413, 07:51 AM

Math
Emeritus
Sci Advisor
Thanks
PF Gold
P: 39,327

As long as l(t) and v(t) are "Lipschitz" ("differentiable" is sufficient but not necessary) on [0, 1], that follows from the elementary "existance and uniqueness" theorem for intial value prolems of the for equations of the form y'= f(t, y).



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