Global existence, asymptotic behavior and uniform attractors for non-autonomous thermoelastic systems

Global existence, asymptotic behavior and uniform attractors for non-autonomous thermoelastic systems
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非自治热弹性系统的全局存在性、渐近行为和均匀吸引子

DOI:
10.1007/s10255-016-0623-4
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发表时间:
2016-10
期刊:
Acta Math. Appl. Sinica
影响因子:
--
通讯作者:
Tianhui Wei
Tianhui Wei
中科院分区:
其他
文献类型:
--
作者:
Yuming Qin;Tianhui Wei

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本文首先利用半群方法和乘法技巧建立了解的整体存在性和渐近性态,然后利用一致压缩函数方法进一步证明非自治热弹性系统一致吸引子的存在性.这种方法的主要优点是,我们只需要用与建立吸收集相同的能量估计来验证紧性条件。此外,我们还利用半群方法研究了半线性热弹性系统解的另一个结果。
In this paper, we first establish the global existence and asymptotic behavior of solutions by using the semigroup method and multiplicative techniques, then further prove the existence of a uniform attractor for a non-autonomous thermoelastic system by using the method of uniform contractive functions. The main advantage of this method is that we need only to verify compactness condition with the same type of energy estimates as that for establishing absorbing sets. Moreover, we also investigate an alternative result of solutions to the semilinear thermoelastic systems by virtue of the semigroup method.
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