**Sergei Tabachnikov**, also spelled **Serge**, (in Russian: Сергей Львович Табачников; born in 1956) is a Russian mathematician who works in geometry and dynamical systems. He is currently a Professor of Mathematics at Pennsylvania State University.

He earned his Ph.D. from Moscow State University in 1987 under the supervision of Dmitry Fuchs and Anatoly Fomenko.^{[1]}

From 2013 to 2015 Tabachnikov served as Deputy Director of the Institute for Computational and Experimental Research in Mathematics (ICERM) in Providence, Rhode Island.^{[2]} He is now Emeritus Deputy Director of ICERM.^{[3]}

He is a fellow of the American Mathematical Society.^{[4]} He currently serves as Editor in Chief of the journal Experimental Mathematics.^{[5]}

A paper on the variability hypothesis by Theodore Hill and Tabachnikov was accepted and retracted by *The Mathematical Intelligencer* and later *The New York Journal of Mathematics* (*NYJM*). There was some controversy over the mathematical model, the peer-review process, and the lack of an official retraction notice from the *NYJM*.^{[6]}

## Selected publications

- Tabachnikov, Serge, ed. (1999).
*Differential and symplectic topology of knots and curves*. Advances in the Mathematical Sciences.**42**. American Mathematical Society. ISBN 978-0-8218-1354-6. MR 1738386. - Farber, Michael; Tabachnikov, Serge (2002), "Topology of cyclic configuration spaces and periodic trajectories of multi-dimensional billiards",
*Topology*,**41**(3): 553–589, arXiv:math/9911226, doi:10.1016/S0040-9383(01)00021-0, MR 1910041 - Tabachnikov, Serge (2005),
*Geometry and Billiards*, Providence, RI: American Mathematical Society, ISBN 978-0-8218-3919-5, MR 2168892 - Ovsienko, Valentin; Tabachnikov, Serge (2005),
*Projective differential geometry old and new. From the Schwarzian derivative to the cohomology of diffeomorphism groups*, Cambridge Tracts in Mathematics,**165**, Cambridge University Press, ISBN 978-0-521-83186-4, MR 2177471 - Fuchs, Dmitry; Tabachnikov, Serge (2007),
*Mathematical Omnibus. 30 Lectures on Classical Mathematics*, Providence, RI: American Mathematical Society, ISBN 978-0-8218-4316-1, MR 2350979

## References

**^**"Archived copy". Archived from the original on 2015-04-02. Retrieved 2015-03-13.CS1 maint: archived copy as title (link)**^**https://icerm.brown.edu/about/include/icerm%20newsletter_summer%202015.pdf ICERM Summer 2015 Newsletter**^**ICERM Emeritus Leadership**^**"American Mathematical Society".**^**Experimental Mathematics: Editorial board**^**Azvolinsky, Anna (2018-09-27). "A Twice-Retracted Paper on Sex Differences Ignites Debate".*The Scientist*. Retrieved 2018-11-03.

## External links

- Sergei Tabachnikov at the Mathematics Genealogy Project
- Sergei Tabachnikov publications indexed by Google Scholar
- Homepage

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