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Operational approach for biharmonic equations in $${\varvec{L}}^{{\varvec{p}}}$$Lp -spaces
Journal of Evolution Equations ( IF 1.1 ) Pub Date : 2019-09-25 , DOI: 10.1007/s00028-019-00536-2
Alexandre Thorel

In this work, we study the existence, uniqueness and maximal \(L^p\)-regularity of the solution of different biharmonic problems. We rewrite these problems by a fourth-order operational equation and different boundary conditions, set in a cylindrical n-dimensional spatial region \(\Omega \) of \({\mathbb {R}}^n\). To this end, we give an explicit representation formula, using analytic semigroups, and invert explicitly a determinant operator in \(L^p\)-spaces thanks to \(\mathcal {E}_\infty \) functional calculus and operator sums theory.

中文翻译:

$$ {\ varvec {L}} ^ {{\ varvec {p}}} $$ Lp-空间中双调和方程的运算方法

在这项工作中,我们研究了不同双谐波问题解的存在性,唯一性和最大(L ^ p \)正则性。我们通过设置在\({\ mathbb {R}} ^ n \)的圆柱n维空间区域\(\ Omega \)中的四阶运算方程和不同的边界条件来重写这些问题。为此,我们使用解析半群给出一个显式表示公式,并借助\(\ mathcal {E} _ \ infty \)函数演算和算子总和明确地反转\(L ^ p \)-空间中的行列式运算符理论。
更新日期:2019-09-25
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