The inverse nonstationary scattering problem for a hyperbolic system of equations on semi-axis

Bu makalede, 1. mertebeden hiperbolik tip n denklem sistemi için (n > 3) yarı eksende düz ve ters saçılma problemi incelenmiştir. Denklem sisteminin katsayıları, saçılma operatörüne göre tek türlü olarak belirlenmiştir. Saçılma operatörünün ve tersinin bazı elemanlarının operatör dönüşümleri yardımı ile çarpanlara ayrılabilmesi özelliklerini kullanarak ve yarı eksendeki saçılma problemini tüm eksendeki saçılma problemine indirgeyerek; problemin çözümü keyfi n doğal sayısı için genelleştirilmiştir.

Hiberbolik tip denklem sistemi için yarı-eksende stasyoner olmayan ters saçılma problemi

In this paper, the direct and inverse nonstationary scattering problem for a hyperbolic system of n equations (n>3) on a semi-axis is studied. The coefficients of the system are uniquely determined according to scattering operator. The solution of the problem is generalized for an arbitrary natural number n applying the properties of separation of factors by means of operator transformations to some elements of the scattering operator and its inverse as well as reducing the scattering problem given on a semi-axis to the scattering problem on the whole-axis.

___

  • Nizhnik, L. P: The non-stationary scattering problem. Kiev. Naukova Dumka 1973.
  • Nizhnik, L. P., Tarasov V. G.: The inverse nonstationary scattering problem for a hyper- bolic system of equations. Dokl. Akad. Nauk SSR, (2) 18, (1977).
  • Nizhnik, L. P., Tarasov V. G.: The inverse nonstationary scattering problem for a hy- perbolic system of equations, Direct and inverse scattering problems, Kiev. Institute of Mathematics AN Ukr. SSR, 61-76, (1981).
  • Iskenderov, N. Sh.: Direct and inverse scattering problem for a system of three hyperbolic equations of the first order on semi-axis with given scattering waves, Preprint Kiev, AN Ukr. SSR, Institute of Mathematics, 85.87, (1987).
  • Nizhnik, L. P., Iskenderov, N. Sh.: Inverse nonstationary scattering problem for a hyper- bolic system of three equations of the first order on semi-axis, Ukr. Mat. J., (7) 42, 931-938, (1990).
  • Iskenderov, N. Sh.: Inverse nonstationary scattering problem for a system of four hyper- bolic equations of the first order on semi-axis, Preprint, Kiev, AN Ukr. SSR, Institute of Mathematics, 88. 38, (1988).
  • Iskenderov, N. Sh.: Scattering problem for a hyperbolic system of four equations of the first order on semi-axis,Boundary value problems for diserential equations, Kiev. Institute of Mathematics, AN Ukr. SSR, 53- 55, (1988).
  • Petkov, V. : Scattering theory for hyperbolic operators, Amsterdam. North-Holland 1989. Anger, G.: Inverse problems in Differential equations, Akademie Verlag Berlin 1990.
  • Nizhnik, L. P.: Integrating multidimensional non-lienar equations by the inverse scattering method, noh-linear phenomena and turbulence. Proc. of II International Workshop, Kiev (1983). New York, Gordon and Breach 1525- 1528, (1984).