Geodesic
On an initial-boundary value problem which arises in the dynamics of a compressible ideal stratified fluid
The Bulletin of Irkutsk State University. Series Mathematics, Tome 48 (2024), pp. 49-63

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In this paper, we investigate the problem on small motions of a compressible ideal stratified fluid in a bounded domain. The problem is studied on the base of approach connected with application of so-called operator matrices theory, as well as abstract differential operator equations. For this purpose, Hilbert spaces and some of their subspaces are introduced. The original initial-boundary value problem reduces to the Cauchy problem for a second-order differential operator equation in the orthogonal sum of some Hilbert spaces. Further, an equation with a closed operator is associated with the resulting equation. On this basis, sufficient conditions for the existence of a solution to the corresponding problem are found.
Keywords: compressible stratified fluid, initial boundary value problem. 
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     author = {Denis O. Tsvetkov},
     title = {On an initial-boundary value problem which arises in the dynamics of a compressible ideal stratified fluid},
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Denis O. Tsvetkov. On an initial-boundary value problem which arises in the dynamics of a compressible ideal stratified fluid. The Bulletin of Irkutsk State University. Series Mathematics, Tome 48 (2024), pp. 49-63. http://geodesic.mathdoc.fr/item/IIGUM_2024_48_a3/