Department of Mathematics

Harvard University

Science Center

One Oxford Street

Cambridge, MA 02138

Office: Science Center 321H

Email: `sebv (at) math (dot) harvard (dot) edu`

Full CV | About Me | Teaching | Talks | Publications | Various

I am a mathematician, currently employed as a Benjamin Peirce fellow at Harvard University. My research investigates interactions between algebra, infinite combinatorics, category theory, and large cardinals, often using ideas from model theory. See more about my background and research interests.

Michael Lieberman, Jiří Rosický, and Sebastien Vasey,

*Forking independence from the categorical point of view*, Advances in Mathematics**346**(2019), 719–772. Publisher version pdf arXiv.Sebastien Vasey,

*Tameness from two successive good frames*, to appear in the Israel Journal of Mathematics. Preprint: pdf arXiv, 27 pages. Last updated on March 26, 2019.Michael Lieberman, Jiří Rosický, and Sebastien Vasey,

*Universal abstract elementary classes and locally multipresentable categories*, Proceedings of the American Mathematical Society**147**(2019), no. 3, 1283–1298. Publisher version pdf arXiv.Sebastien Vasey,

*Toward a stability theory of tame abstract elementary classes*, Journal of Mathematical Logic**18**(2018), no. 2, 1850009 (34 pages). Publisher version pdf arXiv.Sebastien Vasey,

*Shelah's eventual categoricity conjecture in universal classes: part II*, Selecta Mathematica**23**(2017), no. 2, 1469–1506. Publisher version pdf arXiv.

Sebastien Vasey,

*Accessible categories, set theory, and model theory: an invitation*, Submitted. Preprint: pdf arXiv, 67 pages. Last updated on April 25, 2019.Sebastien Vasey, Model theory for abstract elementary classes, 80 pages. Lecture notes for a course I taught at Harvard University in Spring 2018. Last updated on April 26, 2018.

Will Boney and Sebastien Vasey,

*A survey on tame abstract elementary classes*, Beyond First Order Model Theory (José Iovino ed.), CRC Press (2017), 353–427. pdf arXiv.

Sebastien Vasey, Introduction to the model theory of fields, 17 pages. Notes from the logic course I taught in Fall 2018.

Sebastien Vasey, Arrow's impossibility theorem and ultrafilters, 7 pages. Notes from the logic course I taught in Fall 2018.

Sebastien Vasey, The completeness theorem, 10 pages. Notes from the logic course I taught in Fall 2018.

Sebastien Vasey, The two limit theorems of probability, 11 pages. Notes from the probability course I taught in Spring 2018.

Sebastien Vasey, Lecture notes for 21-127 Concepts of mathematics, 96 pages. Main reference for the introduction to proof-based math course I taught in Summer 2014.

Michael Lieberman, Jiří Rosický, and Sebastien Vasey,

*Weak factorization systems and stable independence*, Submitted. Preprint: pdf arXiv, 45 pages. Last updated on April 23, 2019.Michael Lieberman, Jiří Rosický, and Sebastien Vasey,

*Set-theoretic aspects of accessible categories*, Submitted. Preprint: pdf arXiv, 29 pages. Last updated on March 1, 2019.Sebastien Vasey,

*On categoricity in successive cardinals*, Submitted. Preprint: pdf arXiv, 18 pages. Last updated on October 31, 2018.Saharon Shelah and Sebastien Vasey,

*Categoricity and multidimensional diagrams*, Submitted. Preprint: pdf arXiv, 63 pages. Last updated on May 23, 2018.Sebastien Vasey,

*The categoricity spectrum of large abstract elementary classes*, Submitted. Preprint: pdf arXiv, 46 pages. Last updated on September 19, 2018.Nathanael Ackerman, Will Boney, and Sebastien Vasey,

*Categoricity in multiuniversal classes*, to appear in Annals of Pure and Applied Logic. Preprint: pdf arXiv, 15 pages. Last updated on May 17, 2019.

For more, see the full list of my publications and preprints (40+ items), or my teaching page.