Results 51 to 60 of about 17,997 (206)

Existence results for nonlinear implicit fractional differential equations [PDF]

Surveys in Mathematics and its Applications, 2014
In this paper, we establish the existence and uniqueness of solution for a class of initial value problem for implicit fractional differential equations with Caputo fractional derivative.
Mouffak Benchohra , Jamal Eddine Lazreg
doaj  

Comparison between solutions of a two-dimensional time-fractional diffusion-reaction equation through Lie symmetries

Atti della Accademia Peloritana dei Pericolanti : Classe di Scienze Fisiche, Matematiche e Naturali, 2021
In this paper, exact and numerical solutions of two dimensional time-fractional diffusion-reaction equation involving the Riemann-Liouville derivative are determined, by applying a procedure that combines the Lie symmetry analysis with the numerical ...
Alessandra Jannelli, Maria Paola Speciale   +1 more
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Piecewise Implicit Differential Systems

, 2017
In this article we deal with non-smooth dynamical systems expressed by a piecewise first order implicit differential equations of the form x˙=1,(y˙)2={g1(x,y)ifφ(x,y)≥0g2(x,y)ifφ(x,y)≤0,where g1, g2, φ: U→ R are smooth functions and U⊆ R2 is an open set.
da Silva, Paulo R., da Silva, Paulo R. [UNESP], Teixeira, Marco A., Lopes, Bruno D. [UNESP], Lopes, Bruno D.   +4 more
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A survey of partial differential equations in geometric design

, 2008
YesComputer aided geometric design is an area where the improvement of surface generation techniques is an everlasting demand since faster and more accurate geometric models are required.
Willis, P., Ugail, Hassan, Palmer, Ian J., Gonzalez Castro, Gabriela   +3 more
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A Geometric Treatment of Implicit Differential-Algebraic Equations

Journal of Differential Equations, 1994
The existence and uniqueness of implicit differential-algebraic equations are proved using a differential-geometric approach to transfer the problem into explicit ordinary differential equations and applying standard theory of ordinary differential equations.
Rabier, P.J., Rheinboldt, W.C.
openaire   +1 more source

Implicit-explicit difference schemes for nonlinear fractional differential equations with nonsmooth solutions

, 2016
We propose second-order implicit-explicit (IMEX) time-stepping schemes for nonlinear fractional differential equations with fractional order 0 < β
Zhang, Zhongqiang, Karniadakis, George E., Cao, Wanrong, Zeng, Fanhai   +3 more
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Feature based volumes for implicit intersections. [PDF]

, 2011
The automatic generation of volumes bounding the intersection of two implicit surfaces (isosurfaces of real functions of 3D point coordinates) or feature based volumes (FBV) is presented.
Fryazinov, Oleg, Alexander Pasko, Vilbrandt, Turlif, Pierre-Alain Fayolle, Galina Pasko, Pasko, Alexander, Oleg Fryazinov, Fayolle, Pierre-Alain, Pasko, Galina, Turlif Vilbrandt   +9 more
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Numerical solutions of neutral stochastic functional differential equations

, 2008
This paper examines the numerical solutions of neutral stochastic functional differential equations (NSFDEs) $d[x(t)-u(x_t)]=f(x_t)dt+g(x_t)dw(t)$, $t\geq 0$.
Wu, Fuke, Mao, X., , Chinese Scholarship Council (Funder), Mao, Xuerong, Chinese Scholarship Council (Funder), WU, F.   +5 more
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Homogeneous-heterogeneous reactions in Williamson fluid model over a stretching cylinder by using Keller box method

AIP Advances, 2015
This paper addresses the effect of homogeneous-heterogeneous reaction on Williamson fluid model over a stretching cylinder. The boundary layer partial differential equations are converted into ordinary differential equation by using suitable ...
M. Y. Malik, T. Salahuddin, Arif Hussain, S. Bilal, M. Awais   +4 more
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Numerical methods for ordinary differential equations with applications to partial differential equations

, 1983
This thesis was submitted for the degree of Doctor of Philosophy and awarded by Brunel University.The thesis develops a number of algorithms for the numerical solution of ordinary differential equations with applications to partial differential equations.
Khaliq, Abdul Qayyum Masud
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