# What is Green function in differential equation?

## What is Green function in differential equation?

In mathematics, a Green’s function is the impulse response of an inhomogeneous linear differential operator defined on a domain with specified initial conditions or boundary conditions. the solution of the initial-value problem Ly = f is the convolution (G * f ), where G is the Green’s function.

## How do you find the greens of a function?

To find the Green’s function for a 2D domain D, we first find the simplest function that satisfies ∇2v = δ (r). Suppose that v (x, y) is axis-symmetric, that is, v = v (r). h is regular, ∇ 2h = 0, (ξ,η) ∈ D, G = 0 (ξ,η) ∈ C.

**What is green equation?**

According to the question, the atoms of element M occupy 1/3rd of the tetrahedral voids. Therefore, the number of atoms of M is equal to 2 1/3 = 2/3rd of the number of atoms of N. Therefore, ratio of the number of atoms of M to that of N is M : N = (2/3):1 = 2:3 Thus, the formula of the compound is M2 N3.

### How to solve the heat equation with Robin?

Neumann Boundary Conditions Robin Boundary Conditions The heat equation with Neumann boundary conditions Our goal is to solve: u t=c2u xx, 0

### What should the solution of Green’s functions be?

Green’s functions. Suppose that we want to solve a linear, inhomogeneous equation of the form Lu(x) = f(x) (1) where u;fare functions whose domain is . It happens that differential operators often have inverses that are integral operators. So for equation (1), we might expect a solution of the form u(x) = Z.

**Which is the correct solution to the heat equation?**

So, there we have it. The function above will satisfy the heat equation and the boundary condition of zero temperature on the ends of the bar. The problem with this solution is that it simply will not satisfy almost every possible initial condition we could possibly want to use.

#### Can a green’s function solve a non homogenous differential equation?

So, if we know the Green’s function, we can solve the nonhomogeneous differential equation. In fact, we can use the Green’s function to solve non- homogenous boundary value and initial value problems. That is what we will see develop in this chapter as we explore nonhomogeneous problems in more detail.