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Global solution to inhomogeneous Bernoulli ODE

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doobly
#1
Feb2-13, 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.
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HallsofIvy
#2
Feb4-13, 07:51 AM
Math
Emeritus
Sci Advisor
Thanks
PF Gold
P: 39,353
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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