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        <datestamp>2026-10-01T01:27:50Z</datestamp>
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          <dc:title>Proof of Riemann hypothesis</dc:title>
          <dc:creator>Toshihiko Ishiwata (23386432)</dc:creator>
          <dc:subject>Algebra and number theory</dc:subject>
          <dc:subject>Riemann hyoothesis</dc:subject>
          <dc:description>&lt;p dir="ltr"&gt;This paper is a trial to prove Riemann hypothesis according to the following process. 1. We make one identity regarding x from one equation that gives Riemann zeta function ζ(s) analytic continuation and 2 formulas (1/2+a±bi, 1/2− a ±bi) that show non-trivial zero point of ζ(s). 2. We find that the above identity holds only at a = 0. 3. Therefore non-trivial zero points of ζ(s) must be 1/2±bi because a cannot have any value but zero.&lt;/p&gt;</dc:description>
          <dc:date>2026-08-24T00:00:00Z</dc:date>
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