%0 Journal Article %A Podlipenko, Yuriy K. %A Levoshych, Oleg L. %A Popkov, I. I. %D 1999 %I Begell House %K Minimax estimation; boundary value problem; Helmholtz equation %N 1-3 %P 22-28 %R 10.1615/JAutomatInfScien.v31.i1-3.230 %T On Minimax Estimation in the Problems of Acoustic Wave Diffraction %U https://www.dl.begellhouse.com/journals/2b6239406278e43e,45d623a0331f90c5,029e2dcf353feb8b.html %V 31 %X Minimax estimates of functionals of solutions are obtained for systems described by external boundary value problems for the Helmholtz equation under conditions of incomplete information. Determination of minimax estimates is reduced to solution of systems of integro-differential equations. %8 1999-01-04