Examples of using Differential operators in English and their translations into Russian
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On correct linear differential operators.
Differential operators of the second order are studied.
On an inverse problem for differential operators on hedgehog-type graphs.
On Propertiesofthe Eigenfunctionsofa Quadratic Pencilofthe Second Order Differential Operators.
About Differential Operators and Matrices of the Second Order.
Many are integral operators and differential operators.
About Differential Operators and Matrices of the Second Order.
Uniqueness of the Solution of the Inverse Problem for Differential Operators on Arbitrary Compact Graphs.
Multipoint Differential Operators:„Splitting" of the Multiple in Main Eigenvalues.
The Asymptotic Behavior Of The Spectrum Trace Formulas For Differential Operators With Unbounded Coefficients.
Linear differential operators with unbounded operator coefficients and semigroups of bounded operators. .
An inverse spectral problem is studied for arbitrary order differential operators on noncompact graphs.
First and second order differential operators with weight functions of variable sign.
Key words: spectral approximation, Galerkin method, Chebyshev polynomials,weighted Sobolev spaces, differential operators.
About formulas of regularized traces for differential operators of the second order with discontinuous coefficients.
In 1987 Yuri obtained the Degree of Doctor of Science in the area"Spectral Analysis of Infinite Dimensional Elliptic Differential Operators”.
An inverse scattering problem is studied for variable orders differential operators on simplest noncompact graph with cycle.
Inverse differential operators, integral transforms, and generalized forms of Hermite and Laguerre polynomials with several variables and indices are used for their solution.
Carleman estimates, uniform Sobolev inequalities for second-order differential operators, and unique continuation theorems.
Going further, it is seen that the differential operators E i j{\displaystyle E_{ij}} preserve the degree of the polynomials, and hence the polynomials of each fixed degree form a subrepresentation of the Lie algebra g l n{\displaystyle{\mathfrak{gl}}_{n.
The spectral method of approximation of the second and the fourth order differential operators in finite and infinite intervals is concerned in the work.
In the paper connection between infinite waveguide andits finite part is considered within the frame of several widely used in acoustics differential operators example.
We consider the quadratic strongly irregular pencil of ordinary second order differential operators with constant coefficients and with a multiple root of the characteristic equation.
In a typical context where g{\displaystyle{\mathfrak{g}}} is acting by infinitesimal transformations, the elements of U( g){\displaystyle U({\mathfrak{g}})}act like differential operators, of all orders.
In particular, sufficient conditions of norm resolvent approximation of quasi-differential operators of arbitrary orderby differential operators with smooth coefficients are found.
A polinomial pencil of ordinary differential operators of n-th order generated by a homogeneous differential expression with constant coefficients and by two-point boundary conditions of a special structure with lcondition sinzero only(1≤ l≤ n-1) isconsidered in the space L 2 0,1.
Very informally, mollifiers are used to prove the identity of two different kind of extension of differential operators: the strong extension and the weak extension.
An inverse spectral problem is studied for Sturm-Liouville differential operators on hedgehog-type graphs with generalized matching conditions in the interior vertices and with Dirichlet boundary conditions in the boundary vertices.
Related problems can be formulated for the Dirichlet problem for the Laplacian on domains in higher dimensions or on Riemannian manifolds,as well as for other elliptic differential operators such as the Cauchy-Riemann operator or Dirac operator. .
Before going further we can mention the following property: differential operators E i j dual{\displaystyle E_{ ij}^{\ text{ dual}}} commute with differential operators E k l{\displaystyle E_{kl.