The study and application of differential equations in pure and applied mathematics, physics, meteorology, and engineering. | Contact experts in Differential Equations to get answers
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Questions related to Differential Equations
Working on the boundary problem for the vibrating string, so I want to apply simplex theory. I figure the Euler number for the string v - e + f is calculated as 2. The reason is the there are n +...
06 June 2016 5,900 2 View
A system is described by a set of 8 non-linear ordinary differential equations with known disturbance profile and some dis-continuous functions. The state space is given as follows: dx1/dt =...
06 June 2016 7,973 2 View
Suppose a system is described by a set of non-linear differential equations. For implementation of some control techniques, the nonlinear functions need to be smooth. Say, the output is the first...
06 June 2016 9,697 3 View
As we usually on dimensionalize the governing equation and the boundary conditions to get the small parameter? What if we already have the small parameter without non-dimensionalising?
06 June 2016 4,079 3 View
and how to know weither use evolution systems or semi-groups to solve differential equations
06 June 2016 5,414 0 View
For example, if I have to perform parameters estimation from system identification for the following differential equation: (m-Xud)*u' = Xu*u + Xuu*|u|*u + Tu where parameters to be estimated are...
06 June 2016 5,767 5 View
I want to implement the HODIE scheme on a shiskin mesh for singularly pertubed reaction diffusion equations.
31 May 2016 3,714 1 View
I was reading this paper, Bertman, S. B., J. M. Roberts, D. D. Parrish, M. P. Buhr, P. D. Goldan, W. C. Kuster, F. C. Fehsenfeld, S. A. Montzka, and H. Westberg (1995), Evolution of alkyl nitrates...
25 May 2016 818 3 View
Question one: What's the meaning of Lorentz transformation? What's the meaning underlining it? (The matrix form). Is there is any mathematic proof or relationship to explain and conduct its...
24 May 2016 1,842 4 View
Dear colleagues, I'm solving Poisson's equation with Neumann boundary conditions in rectangular area as you can see at the pic 1. I realized fully explicit algorithm, but it costs to much...
10 May 2016 1,816 5 View
I have a set of nonlinear differential equations that are coupled with each other .I know that there is at least one fixed point for these set of equations,but i am trying to find those that...
09 May 2016 8,161 2 View
I hope most of you are familiar with weighted finite difference approximations of derivative. e.g; u_x=s(u(x+h)−u(x))/h+(1−s)(u(x)−u(x−h))/h, where 0≤s≤1. I want to know in solving any...
08 May 2016 2,153 3 View
Analytic the word much related with complex analysis. Any one explain me?
05 May 2016 6,481 1 View
For example, in terms of ordinary differential equation we have ordinary derivative in boundary condition. .
05 May 2016 7,025 5 View
05 May 2016 748 3 View
I am trying to find out solutions for the ordinary differential equations in adiabatic approximations .These equations involves complex functions as variables . How can they be solve in...
05 May 2016 4,936 7 View
Hello everyone. can anybody please tell me how can i solve differential equations using Excel...
05 May 2016 9,791 8 View
05 May 2016 4,236 4 View
05 May 2016 8,704 4 View
For example: While solving a 3-phase fluid flow equation, can we use the finite difference for the mathematical model and finite volume for the physical model.
05 May 2016 6,929 6 View
I want to calculate the Liapunov exponent for my system (please see the attached file). also, how can I draw the chaos diagram for the system?
05 May 2016 4,944 9 View
05 May 2016 348 1 View
theoretical nuclear physics quantum mechanics electrodynamics differential equations complex analysis tensors
05 May 2016 431 1 View
05 May 2016 4,002 6 View