Proving z^5 is uniformly continuous on unit ball

In summary, uniform continuity is a property of a function that ensures its behavior remains consistent across its entire domain, regardless of the proximity of input values. Proving that z^5 is uniformly continuous on the unit ball is important because it guarantees its predictable behavior for mathematical calculations. The unit ball is a set of points within a certain distance from the origin. The uniform continuity of z^5 on the unit ball can be proven using the definition of uniform continuity. It can also be proven for other functions on different sets, as long as they meet the criteria for uniform continuity. The specific methods and techniques used may vary depending on the function and set being analyzed.
  • #1
samer88
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Homework Statement


let f be the function defined in the region |z|<1 , by f(z)=z^5. prove that f is uniformly continuous in |z|<1...where z is a complex number


Homework Equations





The Attempt at a Solution

 
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  • #2


Using what basis? It is a fact that if a function is continuous on a closed and bounded set, then it is uniformly continuous on any subset. If you are allowed to use that, it is sufficient to observe that [itex]z^5[/itex] is continuous on \(\displaystyle |z|\le 5\).
 

FAQ: Proving z^5 is uniformly continuous on unit ball

What is uniform continuity?

Uniform continuity is a property of a function that means the function's behavior is consistent across its entire domain, regardless of how close the input values are to each other.

Why is it important to prove that z^5 is uniformly continuous on the unit ball?

Proving that z^5 is uniformly continuous on the unit ball is important because it guarantees that the function will behave in a predictable and consistent manner on the unit ball, making it easier to analyze and use in mathematical calculations.

What is the unit ball?

The unit ball is a mathematical concept that refers to the set of all points in a given space that are within a certain distance (usually 1) from the origin.

How is the uniform continuity of z^5 on the unit ball proven?

The uniform continuity of z^5 on the unit ball can be proven using the definition of uniform continuity, which states that for any given epsilon, there exists a delta such that if the distance between two points is less than delta, then the difference between the function values at those points will be less than epsilon.

Can uniform continuity be proven for other functions besides z^5 on the unit ball?

Yes, uniform continuity can be proven for any function on any set as long as it satisfies the definition of uniform continuity. However, the specific methods and techniques used to prove uniform continuity may vary depending on the function and set in question.

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