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# A structurally damped plate equation with Dirichlet-Neumann boundary conditions

Type of Publication: | Journal article |

Author: | Denk, Robert; Schnaubelt, Roland |

Year of publication: | 2015 |

Published in: | Journal of Differential Equations ; 259 (2015), 4. - pp. 1323-1353. - ISSN 0022-0396. - eISSN 1090-2732 |

DOI (citable link): | https://dx.doi.org/10.1016/j.jde.2015.02.043 |

Summary: |
We investigate sectoriality and maximal regularity in L
^{p}–L^{q}-Sobolev spaces for the structurally damped plate equation with Dirichlet–Neumann (clamped) boundary conditions. We obtain unique solutions with optimal regularity for the inhomogeneous problem in the whole space, in the half-space, and in bounded domains of class C^{4}. It turns out that the first-order system related to the scalar equation on R^{n} is sectorial only after a shift in the operator. On the half-space one has to include zero boundary conditions in the underlying function space in order to obtain sectoriality of the shifted operator and maximal regularity for the case of homogeneous boundary conditions. We further show that the semigroup solving the problem on bounded domains is exponentially stable. |

Subject (DDC): | 510 Mathematics |

Keywords: | Structurally damped plate equation, Clamped boundary condition, R-sectoriality, Optimal regularity, Operator-valued Fourier multipliers, Exponential stability |

Bibliography of Konstanz: | Yes |

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DENK, Robert, Roland SCHNAUBELT, 2015. A structurally damped plate equation with Dirichlet-Neumann boundary conditions. In: Journal of Differential Equations. 259(4), pp. 1323-1353. ISSN 0022-0396. eISSN 1090-2732. Available under: doi: 10.1016/j.jde.2015.02.043

@article{Denk2015struc-31760, title={A structurally damped plate equation with Dirichlet-Neumann boundary conditions}, year={2015}, doi={10.1016/j.jde.2015.02.043}, number={4}, volume={259}, issn={0022-0396}, journal={Journal of Differential Equations}, pages={1323--1353}, author={Denk, Robert and Schnaubelt, Roland} }