Unsolved problems in differential equations?

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Discussion Overview

The discussion revolves around unsolved problems in differential equations, including ordinary differential equations (ODEs) and partial differential equations (PDEs). Participants explore modern lines of investigation, interesting unsolved questions, and general tools for solving these equations.

Discussion Character

  • Exploratory, Debate/contested, Technical explanation

Main Points Raised

  • One participant expresses interest in discussing modern investigations and unsolved questions in differential equations.
  • Another participant references a professor who highlighted the general form of a differential equation, suggesting it represents a significant unsolved problem.
  • It is noted by some that many differential equations cannot be solved analytically.
  • A participant challenges the clarity of the professor's statement, proposing that the existence and uniqueness of solutions can be demonstrated using Picard's method, and questions whether a general method for finding solutions was being sought.
  • A link to the Navier-Stokes equations is provided as an example of an unsolved problem with a prize associated with its resolution.

Areas of Agreement / Disagreement

Participants express differing views on the significance of the general form of differential equations and the methods available for solving them. There is no consensus on the most important unsolved problems or the methods to address them.

Contextual Notes

Some discussions may depend on specific definitions of solvability and the methods referenced, and there are unresolved questions regarding the generality of proposed solutions.

jonjacson
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¿unsolved problems in differential equations?

Hi, I would like to talk with you about the modern lines of investigation about differential equations ( ode,pde...) , which are the most interesting unsolved questions, ecuations to solve, general tools for solving differential equations ...


I know we have learned a lot, but still there is a lot of work to do .
 
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I know a professor who when asked after a colloquium talk to state one of the most important unsolved problems in differential equations stepped to the chalkboard and wrote:

[tex]y' = f(x,y)[/tex]

and sat down.
 


Yes most equations can't be solved analyticly...
 


LCKurtz said:
I know a professor who when asked after a colloquium talk to state one of the most important unsolved problems in differential equations stepped to the chalkboard and wrote:

[tex]y' = f(x,y)[/tex]

and sat down.

He should be more precise, I think that you could demonstrate the exixtence and uniqueness of a solution using Picard's method.

Perhaps he was asking for a general method to find the solution?
 


Here's one with a prize ...

http://www.claymath.org/millennium/Navier-Stokes_Equations/
 
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