Can the Inverse Operator be used to solve PDEs?

  • Context: Graduate 
  • Thread starter Thread starter tpm
  • Start date Start date
  • Tags Tags
    Inverse Operator
Click For Summary
SUMMARY

The discussion centers on the application of the inverse operator, specifically \(\frac{1}{D}\), where \(D\) represents the derivative operator, to solve partial differential equations (PDEs). The user proposes a generalization to two dimensions with \(\frac{1}{D_{x}+D_{y}}\) and explores its implications through the equation \(\frac{\partial g}{\partial x}+\frac{\partial g}{\partial y}=f\). The challenge remains in finding a solution for \(f\) from the derived equation, indicating a gap in the current understanding of inverse operators in the context of PDEs.

PREREQUISITES
  • Understanding of partial differential equations (PDEs)
  • Familiarity with differential operators and their inverses
  • Knowledge of integral calculus, particularly indefinite integrals
  • Experience with mathematical notation and manipulation of equations
NEXT STEPS
  • Research methods for solving linear PDEs, specifically using the method of characteristics
  • Explore the concept of Green's functions and their application in solving PDEs
  • Study the properties and applications of the Laplace transform in PDEs
  • Investigate the use of Fourier transforms in solving boundary value problems
USEFUL FOR

Mathematicians, physicists, and engineers who are involved in solving partial differential equations and are interested in advanced techniques for manipulating differential operators.

tpm
Messages
67
Reaction score
0
Don't know if I'm wrong or this makes sense but if:

[tex]\frac{1}{D}f= \int dx f(x)[/tex]

Where D is the derivative operator and the integral is indefinite, my question is if as a generalization of this then:

[tex]\frac{1}{D_{x}+D_{y}}f= \iint dxdy f(x,y)[/tex]

(Double indefinite integral over x and y) and so on ...
 
Physics news on Phys.org
Did you even try it on a few examples?
 
Last edited by a moderator:
I have tried this:

[tex]\frac{1}{D_{x}+D_{y})f=g[/tex]

then we can put it in the form:

[tex]\frac{\partial g}{\partial x}+\frac{\partial g}{\partial y}=f[/tex]

HOwever i don't know how to solve this PDE to get 'f'
 

Similar threads

  • · Replies 11 ·
Replies
11
Views
2K
  • · Replies 6 ·
Replies
6
Views
2K
  • · Replies 1 ·
Replies
1
Views
3K
  • · Replies 1 ·
Replies
1
Views
3K
  • · Replies 6 ·
Replies
6
Views
4K
  • · Replies 4 ·
Replies
4
Views
3K
  • · Replies 2 ·
Replies
2
Views
2K
  • · Replies 3 ·
Replies
3
Views
4K
  • · Replies 20 ·
Replies
20
Views
4K
  • · Replies 14 ·
Replies
14
Views
3K