Why are Ramanujan sums the same as the complex Zeta values?

In summary, Ramanujan sums are closely related to complex Zeta values through the Riemann Zeta function. This relationship is significant because it connects two seemingly unrelated mathematical concepts and has led to various applications in number theory and other fields. Ramanujan discovered this relationship through his own independent research and intuition. Other related mathematical concepts include the Riemann Hypothesis, Dirichlet series, and modular forms. The relationship between Ramanujan sums and complex Zeta values can be proved using mathematical techniques such as analytic continuation and functional equations.
  • #1
ddd123
481
55
Possibly a difficult question, but I've never found a discussion on the topic.

Thanks
 
  • #3
Not much else to say, two examples:

1 + 2 + 3 + 4 + · · · = −1/12

1 + 1 + 1 + 1 + · · · = -1/2

This results both from Zeta regularization and Ramanujan summation. The two methods seem to me to be completely unrelated. It's an amazing coincidence so there must be a link between the two.

Another question would be: is it always true? But I'm assuming it is, or that the answer to the first question would answer this one too.
 
  • #4
Last attempt!

Thanks
 

1. How are Ramanujan sums related to complex Zeta values?

Ramanujan sums are closely related to complex Zeta values through the Riemann Zeta function, which is defined as the sum of the reciprocal of all positive integers raised to a given power (usually denoted as s). The Ramanujan sum is a specific value of the Riemann Zeta function when s is equal to 1, which is the same value as the complex Zeta value at s = 1.

2. What is the significance of Ramanujan sums being equal to complex Zeta values?

Ramanujan sums being equal to complex Zeta values is significant because it provides a direct link between two seemingly unrelated mathematical concepts. This relationship has been studied extensively by mathematicians and has led to various applications in number theory and other fields of mathematics.

3. How did Ramanujan discover this relationship between Ramanujan sums and complex Zeta values?

Ramanujan was a self-taught mathematician who made significant contributions to many areas of mathematics, including number theory. He discovered the relationship between Ramanujan sums and complex Zeta values through his own independent research and intuition.

4. Are there any other mathematical concepts related to Ramanujan sums and complex Zeta values?

Yes, there are several other mathematical concepts related to Ramanujan sums and complex Zeta values, such as the Riemann Hypothesis, Dirichlet series, and modular forms. These connections have been explored in depth by mathematicians in the field of analytic number theory.

5. Can the relationship between Ramanujan sums and complex Zeta values be proved?

Yes, the relationship between Ramanujan sums and complex Zeta values can be proved using mathematical techniques such as analytic continuation and functional equations. This has been done by various mathematicians, including Ramanujan himself and his contemporaries.

Similar threads

  • General Math
Replies
3
Views
1K
Replies
6
Views
2K
  • Topology and Analysis
Replies
3
Views
1K
Replies
1
Views
746
  • General Math
Replies
1
Views
1K
Replies
3
Views
1K
Replies
1
Views
1K
  • General Math
Replies
7
Views
1K
  • General Math
Replies
5
Views
1K
Replies
4
Views
2K
Back
Top