Results 11 to 20 of about 743,174 (312)

On the relation of delay equations to first-order hyperbolic partial differential equations [PDF]

open access: yesESAIM: Control, Optimisation and Calculus of Variations, 2014
This paper establishes the equivalence between systems described by a single first-order hyperbolic partial differential equation and systems described by integral delay equations. System-theoretic results are provided for both classes of systems (among them converse Lyapunov results).
Miroslav Krstic, Iasson Karafyllis
openaire   +6 more sources

λ-Symmetry and μ-Symmetry Reductions and Invariant Solutions of Four Nonlinear Differential Equations

open access: yesMathematics, 2020
On one hand, we construct λ-symmetries and their corresponding integrating factors and invariant solutions for two kinds of ordinary differential equations.
Yu-Shan Bai, Jian-Ting Pei, Wen-Xiu Ma
doaj   +1 more source

Galloping Equation and Primary Resonance Investigation of Overhead Transmission Lines

open access: yesZhongguo dianli, 2021
The galloping of overhead transmission lines is one of the main causes for line damages. How to accurately describe the galloping of transmission lines is a worthy topic.
Guangyun MIN   +3 more
doaj   +1 more source

Quantum-Solving Algorithm for d’Alembert Solutions of the Wave Equation

open access: yesEntropy, 2022
When faced with a quantum-solving problem for partial differential equations, people usually transform such problems into Hamiltonian simulation problems or quantum-solving problems for linear equation systems.
Yuanye Zhu
doaj   +1 more source

Fractal First-Order Partial Differential Equations [PDF]

open access: yesArchive for Rational Mechanics and Analysis, 2006
The present paper is concerned with semilinear partial differential equations involving a particular pseudo-differential operator. It investigates both fractal conservation laws and non-local Hamilton-Jacobi equations. The starting point is a new formula for the operator.
Droniou, Jérôme, Imbert, Cyril
openaire   +3 more sources

ON SOME PROBLEMS FOR LOADED PARTIAL DIFFERENTIAL EQUATION OF THE FIRST ORDER

open access: yesVestnik KRAUNC: Fiziko-Matematičeskie Nauki, 2016
For equations of the form ux + uy = lux(x;0) + muy(0;y) the investigation on the correctness of the number of initial value problems in bounded and unbounded domains.
Attaev A. Kh.
doaj   +1 more source

Classical and weak solutions of the partial differential equations associated with a class of two-point boundary value problems

open access: yesBoundary Value Problems, 2018
This paper is concerned with a kind of first-order quasilinear parabolic partial differential equations associated with a class of ordinary differential equations with two-point boundary value problems. We prove that the function given by the solution of
Ning Ma, Zhen Wu
doaj   +1 more source

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