Is the Solution Unique Using the Method of Characteristics?

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In summary, the conversation discusses the use of the method of characteristics to determine if a problem has a solution and if that solution is unique. It also mentions the formula dt/dx = u^2 and its relation to characteristics. The conversation ends with a reference to a Wikipedia article about the method of characteristics.
  • #1
Maximtopsecret
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Homework Statement

: Using the method of characteristics, say if the problem does have a solution; if it does, is the solution unique? [/B]
Безымянный.png


Homework Equations


dt=(u^2)dx;

The Attempt at a Solution


from the formula above follows dt/dx=u^2; then how am I supposed to find and use characteristics?
 
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  • #2
Well what is ux/ut in general? (Never sure if this is same thing as 'method of characteristics' but you can solve by asking - or by now answering - that question.)
 
  • #4
No
It may be more familiar as (∂u/∂x)t/(∂u/∂t)x = ?

(I did not get that article last time I tried to read it, nor others I have tried, but will try again in next days).
 

Related to Is the Solution Unique Using the Method of Characteristics?

1. What is the method of characteristics?

The method of characteristics is a mathematical technique used to solve partial differential equations. It involves finding a set of curves, called characteristics, along which the solution to the equation can be determined.

2. When is the method of characteristics used?

The method of characteristics is typically used for solving first-order linear or quasilinear partial differential equations. It is commonly used in fluid dynamics, heat transfer, and other fields of physics and engineering.

3. How does the method of characteristics work?

The method of characteristics works by finding a set of curves that satisfy a given partial differential equation. These curves, called characteristics, are then used to transform the original equation into a system of ordinary differential equations, which can be solved to find the solution to the original equation.

4. What are the advantages of using the method of characteristics?

One of the main advantages of using the method of characteristics is that it can be used to solve partial differential equations with complex boundary conditions. It also allows for the use of numerical methods, making it a useful tool for solving real-world problems.

5. What are the limitations of the method of characteristics?

The method of characteristics is limited to solving linear or quasilinear partial differential equations. Nonlinear equations may require more complex techniques. Additionally, the method can become computationally expensive for higher-dimensional problems.

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