Convergence of \sum_{n=0}^{\infty} zeta^{(n)}(s)

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In summary, the conversation is about the convergence of the sum \sum_{n=0}^{\infty} zeta^{(n)}(s) and whether it goes to infinity or just diverges. The integral test and plotting the sequence on Matematica suggest that it diverges, but it can still be resummed using Borel resummation. To investigate convergence, one can apply the operator 1 - d/ds to the summation.
  • #1
seanhbailey
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Homework Statement



Does the sum [tex]\sum_{n=0}^{\infty} zeta^{(n)}(s)[/tex] converge regardless of s, where n is the nth derivative of the Riemann Zeta function? If it converges tell what value it converges to.

Homework Equations





The Attempt at a Solution



I used the integral test, and I think it diverges. Plus, by plotting the sequence on Matematica, it looks like it is diverging. Am I correct?
 
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  • #2


Divergent, but you can still resum the series using Borel resummation.
 
  • #3


How do i do that?
 
  • #4


Can anyone prove that the sum [tex]\sum_{n=0}^{\infty} zeta^{(n)}(s)[/tex] goes to INFINITY not just diverges
 
  • #5


seanhbailey said:
Can anyone prove that the sum [tex]\sum_{n=0}^{\infty} zeta^{(n)}(s)[/tex] goes to INFINITY not just diverges

Apply the operator 1 - d/ds to the summation. To investigate convergence, you can apply it to the partial sums of the first n terms. If you apply it formally to the infinite summation then you get the same result you would get after performing the Borel resummation.
 

What is the definition of convergence?

The convergence of a series is the property that the terms of the series become arbitrarily close to a fixed value as the number of terms in the series increases. In other words, the sum of the series approaches a finite limit as the number of terms goes to infinity.

What is the significance of the zeta function in convergence?

The zeta function, denoted by ζ(s), is a mathematical function that plays a crucial role in the study of the convergence of series. It is defined as the infinite sum of the reciprocals of the natural numbers raised to the power of s. In the context of convergence, the zeta function helps determine whether a series will converge or diverge.

What is the relationship between the zeta function and the Riemann Hypothesis?

The Riemann Hypothesis is a famous unsolved problem in mathematics that states that all non-trivial zeros of the zeta function lie on the critical line Re(s) = 1/2. This hypothesis has important implications for the distribution of prime numbers and has been a subject of much research and debate in the mathematical community.

What is the importance of understanding convergence in mathematics?

The concept of convergence is fundamental in mathematics as it allows us to determine whether a series or sequence will have a finite limit or not. This is crucial in many areas of mathematics, including calculus, analysis, and number theory. Understanding convergence also helps us make predictions and draw conclusions about the behavior of mathematical objects.

How can the convergence of zeta function be tested?

There are various methods for testing the convergence of the zeta function. One approach is to use the Euler-Maclaurin summation formula, which relates the sum of a series to its integral. Another method is to use the functional equation of the zeta function, which allows us to transform the series into a product and then use known properties of products to determine convergence. Additionally, numerical methods such as the Euler-Maclaurin summation algorithm can be used to evaluate the convergence of the zeta function.

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