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σ-Evolution models with low regular time-dependent non-effective structural damping
Asymptotic Analysis ( IF 1.4 ) Pub Date : 2020-07-31 , DOI: 10.3233/asy-191566
Edson Cilos Vargas Junior 1 , Cleverson Roberto da Luz 1
Affiliation  

In this work we study decay rates for a σ-evolution equation in Rn under effects of a damping term represented by the action of a fractional Laplacian operator and a time-dependent coefficient, b(t)(−Δ)θut(t,x). We consider that b is ‘confined’ in the curve g(t)=(1+t)αlnγ(1+t) for large t⩾t0 and without any control on ddtb(t).

中文翻译:

具有低规则时间依赖性非有效结构阻尼的σ演化模型

在这项工作中,我们研究了由分数拉普拉斯算子和时间相关系数b(t)(-Δ)θut(t,x)表示的阻尼项作用下Rn中σ演化方程的衰减率。 )。对于大的t⩾t0,我们认为b被“限制”在曲线g(t)=(1 + t)αlnγ(1 + t)中,而对ddtb(t)没有任何控制。
更新日期:2020-08-01
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