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@ARTICLE{2007-27,
    author = {Bul{\'{\i}}{\v c}ek, Miroslav and Fi{\v s}erov{\'{a}}, Veronika},
  keywords = {decomposition of the pressure, existence, incompressible fluid, Lipschitz approximation of Sobolev functions, pressure- and shear-dependent material coefficients, weak solution},
     title = {Existence theory for steady flows of fluids with pressure and shear rate dependent viscosity, for low values of the power-law index},
   journal = {Journal for Analysis and its Applications},
    volume = {28},
    number = {3},
      year = {2009},
     pages = {349--371},
      note = {Preprint no. 2007-27},
      issn = {0232-2064},
       url = {http://www.karlin.mff.cuni.cz/ncmm/preprints/07295160749BuFiPreprint.pdf},
       doi = {10.4171/ZAA/1389},
  abstract = {We deal with a system of partial differential equations describing a steady flow of a homogeneous incompressible non-Newtonian fluid with pressure and shear rate dependent viscosity subject to the homogeneous Dirichlet (no-slip) boundary condition. We establish a global existence of a weak solution for a certain class of such fluids in which the dependence of the viscosity on the shear rate is polynomiallike, characterized by the power-law index. A decomposition of the pressure and Lipschitz approximations of Sobolev functions are considered in order to obtain almost everywhere convergence of the pressure and the symmetric part of the velocity gradient and thus obtain new existence results for low value of the power-law index.},
fjournal={Zeitschrift f\"ur Analysis und ihre Anwendungen. Journal of Analysis and its Applications},
mrclass={35Q35 (35D05 76D03)},
mrnumber={MR2506365},
}