Classical values of Zeta, as simple as possible but not simpler
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arXiv
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| Format: | Preprint |
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2023
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| _version_ | 1866911919411036160 |
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| author | Holtz, Olga |
| author_facet | Holtz, Olga |
| contents | This short note for non-experts means to demystify the tasks of evaluating the Riemann Zeta Function at non-positive integers and at even natural numbers, both initially performed by Leonhard Euler. Treading in the footsteps of G. H. Hardy and others, I re-examine Euler's work on the functional equation for the Zeta function, and explain how both the functional equation and all `classical' integer values can be obtained in one sweep using only Euler's favorite method of generating functions. As a counter-point, I also present an even simpler argument essentially due to Bernhard Riemann, which however requires Cauchy's residue theorem, a result not yet available to Euler. As a final point, I endeavor to clarify how these two methods are organically linked and can be taught as an intuitive gateway into the world of Zeta functionology. |
| format | Preprint |
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arxiv_https___arxiv_org_abs_2308_11637 |
| institution | arXiv |
| publishDate | 2023 |
| record_format | arxiv |
| spellingShingle | Classical values of Zeta, as simple as possible but not simpler Holtz, Olga History and Overview Combinatorics Complex Variables Number Theory 11M06, 11Y35, 11Y70, 05A15, 01A50, 01A55, 01A70 This short note for non-experts means to demystify the tasks of evaluating the Riemann Zeta Function at non-positive integers and at even natural numbers, both initially performed by Leonhard Euler. Treading in the footsteps of G. H. Hardy and others, I re-examine Euler's work on the functional equation for the Zeta function, and explain how both the functional equation and all `classical' integer values can be obtained in one sweep using only Euler's favorite method of generating functions. As a counter-point, I also present an even simpler argument essentially due to Bernhard Riemann, which however requires Cauchy's residue theorem, a result not yet available to Euler. As a final point, I endeavor to clarify how these two methods are organically linked and can be taught as an intuitive gateway into the world of Zeta functionology. |
| title | Classical values of Zeta, as simple as possible but not simpler |
| topic | History and Overview Combinatorics Complex Variables Number Theory 11M06, 11Y35, 11Y70, 05A15, 01A50, 01A55, 01A70 |
| url | https://arxiv.org/abs/2308.11637 |