Results 11 to 20 of about 210,092 (219)

Elliptic Equations with Arbitrarily Directed Translations in Half-Spaces

open access: yesИзвестия Иркутского государственного университета: Серия "Математика", 2023
In this paper, we investigate the half-space Dirichlet problem for elliptic differential-difference equations with superpositions of differential operators and translation operators acting in arbitrary directions parallel to the boundary hyperplane.
V. V. Liiko, A. B. Muravnik
doaj   +1 more source

An Existence Study on the Fractional Coupled Nonlinear q-Difference Systems via Quantum Operators along with Ulam–Hyers and Ulam–Hyers–Rassias Stability

open access: yesJournal of Function Spaces, 2022
In this paper, we study the existence of solutions and their uniqueness and different kinds of Ulam–Hyers stability for a new class of nonlinear Caputo quantum boundary value problems.
Shahram Rezapour   +5 more
doaj   +1 more source

Existence and Uniqueness of Renormalized Solution to Nonlinear Anisotropic Elliptic Problems with Variable Exponent and L1-Data

open access: yesInternational Journal of Differential Equations, 2023
Nonlinear partial differential equations are considered as an essential tool for describing the behavior of many natural phenomena. The modeling of some phenomena requires to work in Sobolev spaces with constant exponent.
Ibrahime Konaté, Arouna Ouédraogo
doaj   +1 more source

The Complete Characterization of Fourth-Order Symplectic Integrators with Extended-Linear Coefficients [PDF]

open access: yes, 2005
The structure of symplectic integrators up to fourth-order can be completely and analytical understood when the factorization (split) coefficents are related linearly but with a uniform nonlinear proportional factor.
E. Hairer   +5 more
core   +4 more sources

Microstructure-property mapping modeling for AZ31 alloy rolling deformation using improved PSO-BP neural network

open access: yesJournal of Materials Research and Technology, 2023
The mechanical properties of wrought magnesium alloys depend on their microstructure, particularly the grain size and its distribution. Conventional modeling methods struggle to accurately predict the complex physical relationship between them.
Shuang Xu   +5 more
doaj   +1 more source

Solution of the inverse spectral problem for differential operators on a finite interval with complex weights [PDF]

open access: yesИзвестия Саратовского университета. Новая серия: Математика. Механика. Информатика
Non-self-adjoint second-order ordinary differential operators on a finite interval with complex weights are studied. Properties of spectral characteristics are established, and the inverse problem of recovering operators from their spectral ...
Yurko, Vjacheslav Anatol'evich
doaj   +1 more source

The stability of solutions to delay differential equations in Banach spaces

open access: yesИзвестия высших учебных заведений. Поволжский регион: Физико-математические науки, 2023
Background. The work is devoted to the analysis of stability in the sense Lyapunov of steady-state solutions of nonlinear differential equations in Banach spaces with time-dependent operators and with time-dependent delays.
Il'ya V. Boykov
doaj   +1 more source

STRUCTURALLY ADAPTIVE MATHEMATICAL MORPHOLOGY BASED ON NONLINEAR SCALE-SPACE DECOMPOSITIONS

open access: yesImage Analysis and Stereology, 2011
Standard formulation of morphological operators is translation invariant in the space and in the intensity: the same processing is considered for each point of the image.
Jesús Angulo, Santiago Velasco-Forero
doaj   +1 more source

A Century of Turbulent Cascades and the Emergence of Multifractal Operators

open access: yesEarth and Space Science, 2020
A century of cascades and three decades of multifractals have built up a truly interdisciplinary framework that has enabled a new approach and understanding of nonlinear phenomena, in particular, in geophysics.
Daniel Schertzer, Ioulia Tchiguirinskaia
doaj   +1 more source

The p-Laplace equation in domains with multiple crack section via pencil operators [PDF]

open access: yes, 2014
The p-Laplace equation $$ \n \cdot (|\n u|^n \n u)=0 \whereA n>0, $$ in a bounded domain $\O \subset \re^2$, with inhomogeneous Dirichlet conditions on the smooth boundary $\p \O$ is considered.
Alvarez-Caudevilla, Pablo   +1 more
core   +2 more sources

Home - About - Disclaimer - Privacy