| Abstract: | The following nonlocal problems are studied for the filtration equations of 1) an Oldroyd fluid and 2) of a Kelvin-Voigt fluid: the existence of solutions for the initial boundary problems for the semiaxis t>0 with free terms and the existence of solution periodic in t with period  with free terms which are also periodic in t with period .Translated from Zapiski Nauchnykh Seminarov Leningradskogo Otdeleniya Matematicheskogo Instituta im. V. A. Steklova AN SSSR, Vol. 189, pp. 82–100, 1991. |
