Poisson's equation is an elliptic partial differential equation of broad utility in theoretical physics. For example, the solution to Poisson's equation...
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runs over the whole space. Poisson's equation was first published in the Bulletin de la société philomatique (1813). Poisson's two most important memoirs...
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\Delta f=h} This is called Poisson's equation, a generalization of Laplace's equation. Laplace's equation and Poisson's equation are the simplest examples...
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The Poisson–Boltzmann equation describes the distribution of the electric potential in solution in the direction normal to a charged surface. This distribution...
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zero, the equation reduces to Poisson's equation. Therefore, when λ is very small, the solution approaches that of the unscreened Poisson equation, which...
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In mathematics, the discrete Poisson equation is the finite difference analog of the Poisson equation. In it, the discrete Laplace operator takes the place...
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The uniqueness theorem for Poisson's equation states that, for a large class of boundary conditions, the equation may have many solutions, but the gradient...
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Weak formulation (category Partial differential equations)
{\displaystyle a(u,v)=\mathbf {v} ^{T}\mathbf {A} \mathbf {u} .} To solve Poisson's equation − ∇ 2 u = f , {\displaystyle -\nabla ^{2}u=f,} on a domain Ω ⊂ R d...
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time. The canonical examples of elliptic PDEs are Laplace's Equation and Poisson's Equation. Elliptic PDEs are also important in pure mathematics, where...
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Schrödinger–Newton equation, sometimes referred to as the Newton–Schrödinger or Schrödinger–Poisson equation, is a nonlinear modification of the Schrödinger equation with...
25 KB (3,508 words) - 11:16, 27 November 2023
.} Then the differential form of Gauss's law for gravity becomes Poisson's equation: ∇ 2 ϕ = 4 π G ρ . {\displaystyle \nabla ^{2}\phi =4\pi G\rho .} This...
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In astrophysics, the Lane–Emden equation is a dimensionless form of Poisson's equation for the gravitational potential of a Newtonian self-gravitating...
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Band bending (section Poisson's equation)
equation which governs the curvature obtained by the band edges in the space charge region, i.e. the band bending phenomenon, is Poisson’s equation,...
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velocity together with an elliptic Poisson's equation for the pressure. On the other hand, the compressible Euler equations form a quasilinear hyperbolic system...
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Potential theory (category Partial differential equations)
Poisson's equation—or in the vacuum, Laplace's equation. There is considerable overlap between potential theory and the theory of Poisson's equation to...
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manifold M {\displaystyle M} . In Newton's theory of gravitation, Poisson's equation reads Δ U = 4 π G ρ {\displaystyle \Delta U=4\pi G\rho \,} where U...
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Debye–Hückel theory (redirect from Debye–Hückel equation)
step is to specify the electrostatic potential for ion j by means of Poisson's equation ∇ 2 ψ j ( r ) = − 1 ε 0 ε r ρ j ( r ) {\displaystyle \nabla ^{2}\psi...
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}}}\cdot {\frac {\partial f_{\alpha }}{\partial \mathbf {v} }}=0,} and Poisson's equation for self-consistent electric field: ∇ 2 ϕ + ρ ε = 0. {\displaystyle...
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Laplace operator (category Elliptic partial differential equations)
differential equations describing physical phenomena. Poisson's equation describes electric and gravitational potentials; the diffusion equation describes...
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Functional equation Functional equation (L-function) Constitutive equation Laws of science Defining equation (physical chemistry) List of equations in classical...
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Korteweg–de Vries equation Modified KdV–Burgers equation Maxwell's equations Navier–Stokes equations Poisson's equation Primitive equations (hydrodynamics)...
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Schamel method the Vlasov equations for the species involved are first solved and only in the second step Poisson's equation to ensure self-consistency...
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function arises in systems that can be described by Poisson's equation, a partial differential equation (PDE) of the form ∇ 2 u ( x ) = f ( x ) {\displaystyle...
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Electrostatics (section Poisson and Laplace equations)
relationship is a form of Poisson's equation. In the absence of unpaired electric charge, the equation becomes Laplace's equation: ∇ 2 ϕ = 0 , {\displaystyle...
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The Nernst–Planck equation is a conservation of mass equation used to describe the motion of a charged chemical species in a fluid medium. It extends...
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Calculus of variations (section Euler–Poisson equation)
\dots ,y^{(n)}(x))dx,} then y {\displaystyle y} must satisfy the Euler–Poisson equation, ∂ f ∂ y − d d x ( ∂ f ∂ y ′ ) + ⋯ + ( − 1 ) n d n d x n [ ∂ f ∂ y...
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(NG) Newton's law of universal gravitation Gauss's law for gravity Poisson's equation for gravity History of gravitational theory General relativity (GR)...
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\end{aligned}}} This equation can be solved together with Poisson's equation numerically. An example of results of solving the drift diffusion equation is shown on...
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wave equation, the diffusion equation, and the Schrödinger equation for a free particle. In optics, the Helmholtz equation is the wave equation for the...
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respectively. The charge density and electric potential are related by Poisson's equation, which gives − ∇ 2 [ Δ ϕ ( r ) ] = 1 ε 0 [ Q δ ( r ) − e Δ ρ ( r )...
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