Abstract
The existence of a weak solution to the initial boundary value problem for the equations of motion of a viscoelastic fluid with memory along the trajectories of a nonsmooth velocity field with inhomogeneous boundary condition is proved. The analysis involves Galerkin-type approximations of the original problem followed by the passage to the limit based on a priori estimates. To study the behavior of trajectories of a nonsmooth velocity field, the theory of regular Lagrangian flows is used.
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Funding
This work was supported by the Russian Science Foundation under grant no. 22-11-00103, https://rscf.ru/project/22-11-00103/.
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Translated from Funktsional'nyi Analiz i ego Prilozheniya, 2023, Vol. 57, pp. 93–99 https://doi.org/10.4213/faa4034.
Translated by O. V. Sipacheva
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Zvyagin, V.G., Orlov, V.P. The Weak Solvability of an Inhomogeneous Dynamic Problem for a Viscoelastic Continuum with Memory. Funct Anal Its Appl 57, 74–79 (2023). https://doi.org/10.1134/S0016266323010082
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DOI: https://doi.org/10.1134/S0016266323010082