具有动态边界条件的反应扩散方程的双曲松弛
Hyperbolic Relaxation of Reaction Diffusion Equations with Dynamic Boundary Conditions
摘要：
考虑了有界区域上半线性反应扩散方程在动力边界条件下的双曲松弛问题。我们还考虑了具有相同动力边界条件的极限抛物问题。每个问题在适当的相空间中是适定的，其中整体弱解生成一个Lipschitz连续半流，该半流允许有界吸收集。我们证明了一族全局吸引子的最优正则性。在将这两个问题拟合到一个共同的框架中之后，给出了当松弛因子趋于零时，全局吸引子族的上连续性的证明。最后，我们还建立了指数吸引子的存在性。
英文摘要：
Under consideration is the hyperbolic relaxation of a semilinear reaction-diffusion equation on a bounded domain, subject to a dynamic boundary condition. We also consider the limit parabolic problem with the same dynamic boundary condition. Each problem is well-posed in a suitable phase space where the global weak solutions generate a Lipschitz continuous semiflow which admits a bounded absorbing set. We prove the existence of a family of global attractors of optimal regularity. After fitting both problems into a common framework, a proof of the upper-semicontinuity of the family of global attractors is given as the relaxation parameter goes to zero. Finally, we also establish the existence of exponential attractors.
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