arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 2003.03806math.AP
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一维热弹性力学模型

A model in one-dimensional thermoelasticity

Tomasz Cieslak, Marija Galić, Boris Muha

摘要:

研究了热弹性力学中一类一维非线性双曲-抛物型初边值问题。证明了局部时间强解的存在唯一性。此外,一些全球时间弱测度值的解决方案被证明存在。为此,我们引入了一个人工粘性的辅助问题,并证明了它的全球时间适定性。其次,我们证明了辅助问题的解在短时间内收敛到强解,并在任意时间内收敛到我们的测度解。

英文摘要:

We study a one-dimensional nonlinear hyperbolic-parabolic initial boundary value problem occurring in the theory of thermoelasticity. We prove existence and uniqueness of the local-in-time strong solution. Also, some global-in-time weak measure valued solutions are proven to exist. To this end we introduce an auxiliary problem with artificial viscosity and prove its global-in-time well-posedness. Next, we show that solutions of the auxiliary problem converge, at some short time interval to the strong solution, and to our measure valued solution for an arbitrary time.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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