• In mathematics, a fundamental solution for a linear partial differential operator L is a formulation in the language of distribution theory of the older...
    8 KB (1,241 words) - 10:05, 26 April 2025
  • Thumbnail for Pell's equation
    that every solution is a Pell multiple of a solution from that set. In particular, if ( u , v ) {\displaystyle (u,v)} is the fundamental solution to u 2 −...
    51 KB (6,689 words) - 05:20, 10 April 2025
  • Thumbnail for Heat equation
    (\mathbf {x} )\end{cases}}} The n-variable fundamental solution is the product of the fundamental solutions in each variable; i.e., Φ ( x , t ) = Φ ( x...
    58 KB (9,878 words) - 21:48, 4 June 2025
  • Thumbnail for Partial differential equation
    navigate through the plethora of different solutions at hand. For this reason, they are also fundamental when carrying out a purely numerical simulation...
    49 KB (6,800 words) - 08:09, 10 June 2025
  • Thumbnail for Laplace's equation
    particle), which is the solution of the Euler equations in two-dimensional incompressible flow. A Green's function is a fundamental solution that also satisfies...
    33 KB (5,075 words) - 15:19, 13 April 2025
  • the method of fundamental solutions (MFS) is a technique for solving partial differential equations based on using the fundamental solution as a basis function...
    8 KB (1,175 words) - 02:11, 23 May 2022
  • the puzzle has 12 solutions. These are called fundamental solutions; representatives of each are shown below. A fundamental solution usually has eight...
    35 KB (3,791 words) - 22:15, 7 June 2025
  • Thumbnail for Dirac delta function
    is a differential operator on Rn, is to seek first a fundamental solution, which is a solution of the equation L [ u ] = δ . {\displaystyle L[u]=\delta...
    96 KB (14,230 words) - 16:33, 16 June 2025
  • differential equations (PDEs), a parametrix is an approximation to a fundamental solution of a PDE, and is essentially an approximate inverse to a differential...
    8 KB (1,047 words) - 00:37, 20 May 2025
  • Source: The fundamental solution due to a singular point force embedded in an Oseen flow is the Oseenlet. The closed-form fundamental solutions for the generalized...
    27 KB (5,345 words) - 03:05, 30 March 2025
  • Thumbnail for Green's function
    Green's functions are studied largely from the point of view of fundamental solutions instead. Under many-body theory, the term is also used in physics...
    43 KB (5,810 words) - 23:26, 15 June 2025
  • Thumbnail for Cauchy's integral formula
    value. The second conclusion asserts that the Cauchy kernel is a fundamental solution of the Cauchy–Riemann equations. Note that for smooth complex-valued...
    25 KB (4,364 words) - 04:10, 17 May 2025
  • two variables that defines an integral transform Heat kernel, the fundamental solution to the heat equation on a specified domain Convolution kernel Stochastic...
    3 KB (373 words) - 21:30, 29 June 2024
  • Thumbnail for Poisson's equation
    electrolyte solutions. Using a Green's function, the potential at distance r from a central point charge Q (i.e., the fundamental solution) is φ ( r )...
    17 KB (2,371 words) - 02:04, 5 June 2025
  • mathematical study of heat conduction and diffusion, a heat kernel is the fundamental solution to the heat equation on a specified domain with appropriate boundary...
    7 KB (1,020 words) - 16:47, 22 May 2025
  • Thumbnail for Cauchy distribution
    mathematics, it is closely related to the Poisson kernel, which is the fundamental solution for the Laplace equation in the upper half-plane. It is one of the...
    47 KB (6,935 words) - 18:19, 18 June 2025
  • }}=A(t)\mathbf {x} } is a linear non-autonomous dynamical system in Rn with fundamental solution matrix Φ(t), Φ(0) = I, then the equilibrium point 0 is said to have...
    2 KB (339 words) - 17:03, 19 July 2022
  • see also transfer function. The concept of a Green's function or fundamental solution of an ordinary differential equation is closely related. Denote the...
    7 KB (1,037 words) - 13:53, 7 June 2025
  • origin, the Newtonian kernel Γ {\displaystyle \Gamma } which is the fundamental solution of the Laplace equation. It is named for Isaac Newton, who first...
    6 KB (889 words) - 23:10, 6 May 2025
  • physics and mathematics, the Helmholtz decomposition theorem or the fundamental theorem of vector calculus states that certain differentiable vector...
    44 KB (7,266 words) - 03:08, 20 April 2025
  • \cdot )\to f,&{\text{as }}t\to 0;\end{cases}}} to have a smooth fundamental solution, i.e. a real-valued function p (0, +∞) × R2d → R such that p(t, ·...
    5 KB (772 words) - 08:57, 9 April 2025
  • Thumbnail for Impulse response
    Dirac's delta function under the transformation, analogous to the fundamental solution of a partial differential operator. It is usually easier to analyze...
    10 KB (1,211 words) - 21:36, 25 May 2025
  • integral transforms and infinite series, or by employing appropriate fundamental solutions. For example, the Dirichlet problem of the heat equation on the...
    35 KB (5,052 words) - 00:33, 28 May 2025
  • In physics, the Green's function (or fundamental solution) for the Laplacian (or Laplace operator) in three variables is used to describe the response...
    11 KB (1,910 words) - 01:17, 15 August 2024
  • matrix. The Green's functions, or fundamental solutions, are often problematic to integrate as they are based on a solution of the system equations subject...
    18 KB (2,077 words) - 02:50, 12 June 2025
  • Thumbnail for Stokes flow
    point force embedded in a Stokes flow. From its derivatives, other fundamental solutions can be obtained. The Stokeslet was first derived by Oseen in 1927...
    24 KB (3,387 words) - 00:52, 4 May 2025
  • variation of parameters usually involves the fundamental solution of the homogeneous problem, the infinitesimal solutions x s {\displaystyle x_{s}} then being...
    21 KB (3,989 words) - 04:48, 6 December 2023
  • Thumbnail for Fick's laws of diffusion
    law has the same mathematical form as the Heat equation and its fundamental solution is the same as the Heat kernel, except switching thermal conductivity...
    58 KB (8,249 words) - 16:41, 24 May 2025
  • Thumbnail for Archimedes's cattle problem
    w^{2}=u+v{\sqrt {(609)(7766)}},} where ( u , v ) {\displaystyle (u,v)} is the fundamental solution of the Pell equation u 2 − ( 609 ) ( 7766 ) v 2 = 1. {\displaystyle...
    16 KB (2,232 words) - 23:18, 9 January 2025
  • Thumbnail for Folded normal distribution
    physics of heat conduction, the folded normal distribution is a fundamental solution of the heat equation on the half space; it corresponds to having...
    18 KB (3,424 words) - 02:55, 1 August 2024