Results 11 to 20 of about 822,876 (350)

The nonlocal problem for the differential-operator equation of the even order with the involution

open access: yesKarpatsʹkì Matematičnì Publìkacìï, 2018
In this paper, the problem with boundary nonself-adjoint conditions for a differential-operator equations of the order $2n$ with involution is studied. Spectral properties of operator of the problem is investigated.
Ya.O. Baranetskij   +3 more
doaj   +3 more sources

On identity for eigenvalues of second order differential operator equation

open access: yesMathematical and Computer Modelling, 2009
In this study we investigate the spectrum and regularized trace of the second order differential operator equation with periodic boundary conditions. (C) 2008 Elsevier Ltd.
Baykal, Oya, Bayramov, Azad, Oer, Zerrin
core   +4 more sources

In-context operator learning with data prompts for differential equation problems [PDF]

open access: yesProceedings of the National Academy of Sciences of the United States of America, 2023
Significance This paper presents In-Context Operator Networks (ICON), a neural network approach that can learn new operators from prompted data during the inference stage without requiring any weight updates.
Liu Yang, Siting Liu, Tingwei Meng
exaly   +2 more sources

Uniqueness Criteria for Solving a Time Nonlocal Problem for a High-Order Differential Operator Equation l(·)—A with a Wave Operator with Displacement

open access: yesSymmetry, 2022
This article presents a criterion for the uniqueness of the solution of a problem nonlocal in time for a differential-operator equation with a symmetric operator part on space variables.
Baltabek Kanguzhin, Bakytbek Koshanov
core   +2 more sources

Algebraic and differential operator equations

open access: yesLinear Algebra and its Applications, 1988
Explicit expressions for solutions of boundary-value problems and Cauchy problems related to the operator differential equation X(n)+An−1Xn−1)+⋯+A0X=0 are given in terms of solutions of the algebraic operator equation Xn+An−1Xn−1 +⋯+A0=0.
Jódar, Lucas
core   +3 more sources

Differential operator related to the generalized superradiance integral equation

open access: yes, 2010
In this paper we consider a class of problems which are generalized versions of the three-dimensional superradiance integral equation. A commuting differential operator will be found for this generalized problem.
SenGupta, Indranil, Indranil SenGupta
core   +2 more sources

Integro-differential equations with bounded operators in Banach spaces [PDF]

open access: yesҚарағанды университетінің хабаршысы. Математика сериясы, 2022
The paper investigates integro-differential equations in Banach spaces with operators, which are a composition of convolution and differentiation operators.
V.E. Fedorov, A.D. Godova, B.T. Kien
doaj   +3 more sources

Reduced operator inference for nonlinear partial differential equations [PDF]

open access: yesSIAM Journal on Scientific Computing, 2021
We present a new scientific machine learning method that learns from data a computationally inexpensive surrogate model for predicting the evolution of a system governed by a time-dependent nonlinear partial differential equation (PDE), an enabling ...
E. Qian   +2 more
semanticscholar   +1 more source

Analysis of Volterra Integrodifferential Equations with the Fractal-Fractional Differential Operator

open access: yesComplexity, 2023
In this paper, a class of integrodifferential equations with the Caputo fractal-fractional derivative is considered. We study the exact and numerical solutions of the said problem with a fractal-fractional differential operator.
null Kamran   +5 more
doaj   +1 more source

Nonoscillation of damped linear differential equations with a proportional derivative controller and its application to Whittaker-Hill-type and Mathieu-type equations [PDF]

open access: yesOpuscula Mathematica, 2022
The proportional derivative (PD) controller of a differential operator is commonly referred to as the conformable derivative. In this paper, we derive a nonoscillation theorem for damped linear differential equations with a differential operator using ...
Kazuki Ishibashi
doaj   +1 more source

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