Boundedness of Solution Operator Families for the Navier-Lame ́ Equations with Surface Tension in Whole Space

Authors

  • Sri Maryani Department of Mathematics, Jenderal Soedirman University http://orcid.org/0000-0003-4868-5443
  • Ari Wardayani Department of Mathematics, Jenderal Soedirman University
  • Bambang Hendriya Guswanto Department of Mathematics, Jenderal Soedirman University

DOI:

https://doi.org/10.31764/jtam.v6i1.6217

Keywords:

R-boundedness, Whole-space, Navier-lame Equations, Fluid Motion, Well-posedness.

Abstract

In this paper, we consider the boundedness of the operator families in whole space for Navier-Lame model problem in bounded domain of N dimensional Euclidean space (N≥2). To find the boundedness of the operator families, first of all we construct model problem in the form of the resolvent problem by using Laplace transform. Then, using Fourier transform, we get the solution formula of the model problem. In this paper, we use the qualitative methods to construct solution formula of velocity (u). This step is fundamental stage to find the well-posedness of the model problem. As we known that fluid motion can be described in partial differential equation (PDE). Essential point in PDE are finding existence and uniqueness of the model problem. One methods of investigating the well-posedness is R-boundedness of the solution operator families of the model problem. We can find the R-boundedness of the solution operator families not only in whole-space, half-space, bent-half space and in general domain. In this paper we investigate the R-boundedness of the solution operator families only in whole space. By using this R-boundedness, we can find that the multipliers which form of the operator families are bounded with some positive constant.

 

Author Biographies

Sri Maryani, Department of Mathematics, Jenderal Soedirman University

Department of Mathematics

Faculty of Mathematics and Natural Sciences

Ari Wardayani, Department of Mathematics, Jenderal Soedirman University

Mathematics Department

Bambang Hendriya Guswanto, Department of Mathematics, Jenderal Soedirman University

Mathematics Department

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Published

2022-01-22

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Articles