Analyticity of thermo-elastic semigroups with free boundary conditions
Analyticity of thermo-elastic semigroups with free boundary conditions
复制标题
具有自由边界条件的热弹性半群的解析性
DOI:
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发表时间:
1973
期刊:
影响因子:
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通讯作者:
R. Triggiani
中科院分区:
文献类型:
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作者:
I. Lasiecka;R. Triggiani
We consider a thermo-elastic plate system where the elastic equation
does not account for rotational forces. Of all canonical boundary conditions (B.C.),
we focus on the most challenging case unsolved in the literature: that of free B.C.,
which are coupled. As in other simpler B.C.-cases, we show that the corresponding
s.c. contraction semigroup (on a natural energy space) is analytic, and, hence, uniformly
stable. The proof employs P.D.E. methods and estimates. Thus, this paper
completes the authors’ analysis [L-T.1 ], [L-T.2], spurred by the original important
contribution [L-R.1 ], on analyticity of thermo-elastic semigroups with no rotational
forces: under all canonical B.C., they are analytic, hence uniformly stable.