naa a22 4500 51081025X CHVBK 20180411083439.0 cr unu---uuuuu 180411e20130301xx s 000 0 eng 10.1134/S106423071302010X doi (NATIONALLICENCE)springer-10.1134/S106423071302010X Potapov D. St. Petersburg State University, St. Petersburg, Russia aut Optimal control of higher order elliptic distributed systems with a spectral parameter and discontinuous nonlinearity [Elektronische Daten] [D. Potapov] Optimal control problems for higher order elliptic distributed systems with a spectral parameter and nonlinearity that is discontinuous in the phase variable are considered. Sufficient conditions for the nonemptiness of the set of acceptable "control-state” pairs are found by using the variational method; topological properties of this set are studied. Existence theorems for the solution of optimization problems are proved. The optimal control in the Gol'dshtik problem of the separated flows of incompressible fluid is obtained as an application of the results. Pleiades Publishing, Ltd., 2013 Journal of Computer and Systems Sciences International SP MAIK Nauka/Interperiodica 52/2(2013-03-01), 180-185 1064-2307 52:2<180 2013 52 11488 https://doi.org/10.1134/S106423071302010X text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1134/S106423071302010X text/html Onlinezugriff via DOI NATIONALLICENCE 100 1- Potapov D. St. Petersburg State University, St. Petersburg, Russia aut NATIONALLICENCE 773 0- Journal of Computer and Systems Sciences International SP MAIK Nauka/Interperiodica 52/2(2013-03-01), 180-185 1064-2307 52:2<180 2013 52 11488 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer