Hello all, we are the Mirzakhani Society, a group for all the women and non-binary mathematicians at Oxford. We run lots and lots of relaxed events from pizza nights to career conferences. Our main aim is to create a warm and welcoming environment for women* to come together and chat about life, maths and anything in-between. 

 

TE-PAI: exact time evolution by sampling random circuits
Kiumi, C Koczor, B (22 Oct 2024)
Rigidity of the Torelli subgroup in $\mathrm{Out}(F_{N})$
Hensel, S Horbez, C Wade, R Revista Matemática Iberoamericana (25 Oct 2024)

Did you know that nearly 40 early career researchers in the department actively play a musical instrument? If you haven't told us yet about your extra-mathematical talents, especially faculty, please let Dyrol know which instrument you play. We may (may) do a feature next term on maths and music. You know, get a band together, that sort of thing.

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A French horn, one of the instruments we play.

Titchmarsh Research Fellow in Mathematical Physics

Postdoctoral Research Associate in Derived Algebraic Geometry and Homotopy Theory

Postdoctoral Research Associate in Operator Algebras

Associate Professorship (or Professorship) of Pure Mathematics (with a preference for areas relating to Geometry)

Full list here

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Professor Dominic Joyce has been appointed Savilian Professor of Geometry here in Oxford. Dominic will be the 21st holder of the Savilian Chair. Established in 1619 by Sir Henry Savile, it has been held by many top mathematicians - including John Wallis (who introduced the ∞ notation), Edmond Halley (after whom Halley's comet is named), Edward Titchmarsh, and Sir Michael Atiyah.
Tue, 26 Nov 2024

15:30 - 16:30
Online

Optimizing the Campos-Griffiths-Morris-Sahasrabudhe upper bound on Ramsey numbers

Sergey Norin
(McGill University)
Further Information

Part of the Oxford Discrete Maths and Probability Seminar, held via Zoom. Please see the seminar website for details.

Abstract

In a recent breakthrough Campos, Griffiths, Morris and Sahasrabudhe obtained the first exponential improvement of the upper bound on the classical Ramsey numbers since 1935. I will outline a reinterpretation of their proof, replacing the underlying book algorithm with a simple inductive statement. In particular, I will present a complete proof of an improved upper bound on the off-diagonal Ramsey numbers and describe the main steps involved in improving their upper bound for the diagonal Ramsey numbers to $R(k,k)\le(3.8)^k$ for sufficiently large $k$.

Based on joint work with Parth Gupta, Ndiame Ndiaye, and Louis Wei.

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