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Global existence of large solutions to initial boundary value problems for a viscous, heat-conducting, one-dimensional real gas. (English) Zbl 0579.35052
The initial boundary value problem considered here is $u_ t-v_ x=0,\quad v_ t-\sigma_ x=0,\quad (e+(1/2)v^ 2)t-(\sigma v-q)_ x=0,\quad \eta_ t+(q/\theta)_ x\geq 0$ with $$u(x,0)=u_ 0(x)$$, $$v(x,0)=v_ 0(x)$$, $$\theta (x,0)=\theta_ 0(x)$$ on [0,1]. The boundary conditions are $$q(0,t)=q(1,t)=0$$ if $$t\geq 0$$ and either $$\sigma (0,t)=\sigma (1,t)=0$$ or $$v(0,t)=v(1,t)=0$$. This is a model of a viscous heat conducting gas. Under certain conditions it is proved that there is a unique solution $$\{$$ u(x,t),v(x,t),$$\theta$$ (x,t)$$\}$$ on [0,1]$$\times [0,\infty)$$ with $$u,v>0$$ and satisfying regularity of derivatives for each finite time. In other words, shocks do not develop because the dissipative effect of the nonlinearities is sufficient to prevent them.
Reviewer: E.Barron

MSC:
 35L60 First-order nonlinear hyperbolic equations 35L67 Shocks and singularities for hyperbolic equations 35A05 General existence and uniqueness theorems (PDE) (MSC2000)
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References:
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