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|Born||March 29, 1969|
|Alma mater||Princeton University|
|Known for||Anabelian geometry|
Inter-universal Teichmüller theory
|Awards||JSPS Prize, Japan Academy Medal|
|Doctoral advisor||Gerd Faltings|
Shinichi Mochizuki (望月 新一, Mochizuki Shin'ichi, born March 29, 1969) is a Japanese mathematician working in number theory and arithmetic geometry. He is one of the main contributors to anabelian geometry. His contributions include his solution of the Grothendieck conjecture in anabelian geometry about hyperbolic curves over number fields. Mochizuki has also worked in Hodge–Arakelov theory and p-adic Teichmüller theory. Mochizuki developed inter-universal Teichmüller theory, which has attracted a high level of attention of non-mathematicians due to claims it provides a resolution of the abc conjecture.
Shinichi Mochizuki was born to parents Kiichi and Anne Mochizuki. When he was five years old, Shinichi Mochizuki and his family left Japan to live in the United States. His father was Fellow of the Center for International Affairs and Center for Middle Eastern Studies at Harvard University (1974-76). Mochizuki attended Phillips Exeter Academy and graduated in 1985. He entered Princeton University as an undergraduate at age 16 and graduated salutatorian in 1988. He then received a Ph.D. under the supervision of Gerd Faltings at age 23. After his PhD, Mochizuki spent two years at Harvard and then in 1994 moved back to Japan to join the Research Institute for Mathematical Sciences (RIMS) at Kyoto University in 1992, and was promoted to professor in 2002.
Mochizuki proved Grothendieck's conjecture on anabelian geometry in 1996. He was an invited speaker at the International Congress of Mathematicians in 1998. In 2000-2008 he discovered several new theories including the theory of frobenioids, mono-anabelian geometry and the etale theta theory for line bundles over tempered covers of the Tate curve.
On August 30, 2012 Mochizuki released four preprints, whose total size was about 500 pages, that develop inter-universal Teichmüller theory and apply it to attempt to prove several very famous problems in Diophantine geometry. These include the strong Szpiro conjecture, the hyperbolic Vojta conjecture and the abc conjecture over every number field. The preprints have not been published. In September 2018, Mochizuki posted a report on his work by Peter Scholze and Jakob Stix asserting that the third preprint contains an irreparable flaw; he also posted several documents containing his rebuttal of their criticism. The majority of number theorists have found Mochizuki's preprints very difficult to follow and have not accepted the conjectures as settled, although there are a few prominent exceptions, including Go Yamashita, Ivan Fesenko, and Yuichiro Hoshi, who vouch for the work and have written expositions of the theory.
On April 3, 2020, two Japanese mathematicians, Masaki Kashiwara and Akio Tamagawa, announced that Mochizuki's claimed proof of the abc conjecture would be published in Publications of the Research Institute for Mathematical Sciences (RIMS), a journal of which Mochizuki is chief editor. The announcement was received with skepticism by Kiran Kedlaya and Edward Frenkel, as well as being described by Nature as "unlikely to move many researchers over to Mochizuki's camp."
- Mochizuki, Shinichi (1997), "A Version of the Grothendieck Conjecture for p-adic Local Fields" (PDF), International Journal of Mathematics, Singapore: World Scientific Pub. Co., 8 (3): 499–506, CiteSeerX 10.1.1.161.7778, doi:10.1142/S0129167X97000251, ISSN 0129-167X
- Mochizuki, Shinichi (1998), "The intrinsic Hodge theory of p-adic hyperbolic curves, Proceedings of the International Congress of Mathematicians, Vol. II (Berlin, 1998)", Documenta Mathematica: 187–196, ISSN 1431-0635, MR 1648069
- Mochizuki, Shinichi (1999), Foundations of p-adic Teichmüller theory, AMS/IP Studies in Advanced Mathematics, 11, Providence, R.I.: American Mathematical Society, ISBN 978-0-8218-1190-0, MR 1700772
Inter-universal Teichmüller theory
- Mochizuki, Shinichi (2011), "Inter-universal Teichmüller Theory: A Progress Report" (PDF), Development of Galois–Teichmüller Theory and Anabelian Geometry, The 3rd Mathematical Society of Japan, Seasonal Institute.
- Mochizuki, Shinichi (2012a), Inter-universal Teichmuller Theory I: Construction of Hodge Theaters (PDF).
- Mochizuki, Shinichi (2012b), Inter-universal Teichmuller Theory II: Hodge–Arakelov-theoretic Evaluation (PDF).
- Mochizuki, Shinichi (2012c), Inter-universal Teichmuller Theory III: Canonical Splittings of the Log-theta-lattice (PDF).
- Mochizuki, Shinichi (2012d), Inter-universal Teichmuller Theory IV: Log-volume Computations and Set-theoretic Foundations (PDF).
- Mochizuki, Shinichi. "Curriculum Vitae" (PDF). Retrieved 14 September 2012.
- Crowell 2017.
- Leah P. (Edelman) Rauch Philly.com on Mar. 6, 2005
- MOCHIZUKI, Kiichi Dr. National Association of Japan-America Societies, Inc.
- "Seniors address commencement crowd". Princeton Weekly Bulletin. 77. 20 June 1988. p. 4. Archived from the original on 3 April 2013.CS1 maint: bot: original URL status unknown (link)
- Castelvecchi 2015.
- "International Congress of Mathematicians 1998". Archived from the original on 2015-12-19.
- Inter-universal Teichmüller theory IV: log-volume computations and set-theoretic foundations, Shinichi Mochizuki, August 2012
- Klarreich, Erica (September 20, 2018). "Titans of Mathematics Clash Over Epic Proof of ABC Conjecture". Quanta Magazine.
- Fesenko, Ivan (2016), "Fukugen", Inference: International Review of Science, 2 (3)
- Roberts, David Michael (2019), "A crisis of identification", Inference: International Review of Science, 4 (3)
- Castelvecchi, Davide (April 3, 2020). "Mathematical proof that rocked number theory will be published". Nature. Retrieved April 4, 2020.
- Castelvecchi, Davide (7 October 2015), "The biggest mystery in mathematics: Shinichi Mochizuki and the impenetrable proof", Nature, 526 (7572): 178–181, Bibcode:2015Natur.526..178C, doi:10.1038/526178a, PMID 26450038
- Crowell, Rachel (19 September 2017). "On a summary of Shinichi Mochizuki's proof for the abc conjecture". American Mathematical Society.CS1 maint: ref=harv (link)
- Ishikura, Tetsuya (16 December 2017). "Mathematician in Kyoto cracks formidable brainteaser". The Asahi Shimbun.
- Shinichi Mochizuki at the Mathematics Genealogy Project
- Personal website
- Papers of Shinichi Mochizuki
- A brief introduction to inter-universal geometry
- On inter-universal Teichmüller theory of Shinichi Mochizuki, colloquium talk by Ivan Fesenko
- Arithmetic deformation theory via arithmetic fundamental groups and nonarchimedean theta functions, notes on the work of Shinichi Mochizuki by Ivan Fesenko
- Introduction to inter-universal Teichmüller theory (in Japanese), a survey by Yuichiro Hoshi
- RIMS Joint Research Workshop: On the verification and further development of inter-universal Teichmuller theory, March 2015, Kyoto*
- CMI workshop on IUT theory of Shinichi Mochizuki, December 2015, Oxford*