Цифровий репозитарій
Українського державного університету
імені Михайла Драгоманова

Перегляд Факультети, інститути, підрозділи по темі "Darboux transformation"

ISSN: 2310-8290

Перегляд Факультети, інститути, підрозділи по темі "Darboux transformation"

Сортувати по: Порядок: Результати:

  • Darboux transformation of generalized Jacobi matrices 
    Kovalyov, Ivan (2014)
    Let J be a monic generalized Jacobi matrix, i.e. a three-diagonal block matrix of special form, introduced by M. Derevyagin and V. Derkach in 2004. We find conditions for a monic generalized Jacobi matrix J to admit a ...
  • On a class of generalized Stieltjes continued fractions 
    Derkach, Vladimir; Kovalyov, Ivan (2015)
    With each sequence of real numbers s = {sj}∞j=0 two kinds of continued fractions are associated, — the so-called P-fraction and a generalized Stieltjes fraction that, in the case when s = {sj}∞j=0 is a sequence of moments ...
  • α − regular indefinite Stieltjes moment problem and Darboux transformation 
    Kovalyov, Ivan; Lebedeva, Elena; Stakhova, Olena (2021)
    A sequence of the real numbers s = \{ si\}\ell i=0 is associated with the some indefinite Stieltjes moment problem and generalized Jacobi matrices. The relation between the \alpha - regular indefinite Stieltjes moment ...