Results 81 to 90 of about 290,072 (190)

Polynomial solutions to constant coefficient differential equations [PDF]

open access: yesTransactions of the American Mathematical Society, 1992
Let D 1 , … , D r ∈ C [ ∂ / ∂ x 1 , … , ∂ / ∂
openaire   +2 more sources

Cauchy-Kowalevski and polynomial ordinary differential equations

open access: yesElectronic Journal of Differential Equations, 2012
The Cauchy-Kowalevski Theorem is the foremost result guaranteeing existence and uniqueness of local solutions for analytic quasilinear partial differential equations with Cauchy initial data. The techniques of Cauchy-Kowalevski may also be applied to
Roger J. Thelwell   +2 more
doaj  

Solution of Inhomogeneous Differential Equations with Polynomial Coefficients in Terms of the Green’s Function

open access: yesMathematics, 2017
The particular solutions of inhomogeneous differential equations with polynomial coefficients in terms of the Green’s function are obtained in the framework of distribution theory.
Tohru Morita, Ken-ichi Sato
doaj   +1 more source

Classification of Exact Solutions for Some Nonlinear Partial Differential Equations with Generalized Evolution

open access: yesAbstract and Applied Analysis, 2012
We obtain the classification of exact solutions, including soliton, rational, and elliptic solutions, to the one-dimensional general improved Camassa Holm KP equation and KdV equation by the complete discrimination system for polynomial method.
Yusuf Pandir   +3 more
doaj   +1 more source

Global Structure of Quaternion Polynomial Differential Equations [PDF]

open access: yesCommunications in Mathematical Physics, 2011
In this paper we mainly study the global structure of the quaternion Bernoulli equations $\dot q=aq+bq^n$ for $q\in \mathbb H$ the quaternion field and also some other form of cubic quaternion differential equations. By using the Liouvillian theorem of integrability and the topological characterization of $2$--dimensional torus: orientable compact ...
openaire   +3 more sources

Solusi Polinomial Persamaan Integro-diferensial Fredholm Linear dengan Koefisien Konstan [PDF]

open access: yes, 2015
This paper discusses how to obtain a polynomial solution of linear Fredhlom integrodifferential equation with constant coefficients using a matrix method.
Syamsudhuha, S. (Syamsudhuha)   +2 more
core  

Research on a High Precision Reservoir Flood Regulating Calculation Based on Solving Integral Equation

open access: yesRenmin Zhujiang, 2020
Reservoir flood regulating calculation can be divided into two methods: solving ordinary differential equation and solving integral equation, of which the method of solving integral equation is more widely used in engineering.
ZHOU Bin
doaj  

Near-Legendre Differential Equations

open access: yesJournal of Kufa for Mathematics and Computer, 2019
A differential equation of the form ((1-x^2m ) y^((k)) )^((2m-k))+λy=0,-1≤x≤1,0≤k≤2m;k,m integers is called a near-Legendre equation. We show that such an equation has infinitely many polynomial solutions corresponding to infinitely many λ.
Adel A. Abdelkarim
doaj   +1 more source

Bayesian polynomial neural networks and polynomial neural ordinary differential equations [PDF]

open access: yesPLOS Computational Biology
Symbolic regression with polynomial neural networks and polynomial neural ordinary differential equations (ODEs) are two recent and powerful approaches for equation recovery of many science and engineering problems. However, these methods provide point estimates for the model parameters and are currently unable to accommodate noisy data.
Colby Fronk   +3 more
openaire   +6 more sources

On the Derivation of a Closed-Form Expression for the Solutions of a Subclass of Generalized Abel Differential Equations

open access: yesInternational Journal of Differential Equations, 2013
We investigate the properties of a general class of differential equations described by dy(t)/dt=fk+1(t)y(t)k+1+fk(t)y(t)k+⋯+f2(t)y(t)2+f1(t)y(t)+f0(t), with k>1 a positive integer and fi(t), 0≤i≤k+1, with fi(t), real functions of t.
Panayotis E. Nastou   +3 more
doaj   +1 more source

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