Geometry Seminar, Rényi Institute, Fall 2022



The seminar will be "normal", at Kutyás Room, brodacasted on Zoom, or online. We merged it with the ELTE Combinatorial Geometry Seminar.
New name: Budapest Big Combinatorics + Geometry Seminar.

Zoom link for the online lectures: https://zoom.us/j/96029300722 and the password is the first 6 terms from the Fibonacci sequence starting with 11.

Recordings of previous lectures

August 26. Matthew Kendall: Quantitative Helly-type theorems via sparse approximation

September 2. Karim Adiprasito: Algebraic aspects of lattice polytopes

September 16. Dmitriy Zakharov: Convex polytopes from fewer points

September 23. Máté Matolcsi and Dániel Varga: The density of planar sets avoiding unit distances

September 30. Soumi Nandi: Colorful Helly theorem for piercing boxes with two points

October 7. Dömötör Pálvölgyi: C-P3O: Orientation of convex sets and other good covers

October 14. Natan Rubin: Two questions on crossings in geometric (hyper-)graphs

October 21. Grigory Ivanov: Geometric representation of 1/s-concave functions and duality

October 28. Benny Sudakov: Evasive sets, covering by subspaces, and point-hyperplane incidences

November 4. András Gyárfás: Two Ramsey problems on vertex-ordered complete graphs inpired by twisted drawings

November 18. József Solymosi: On the structure of pointsets with many collinear triples

November 25. Barnabás Janzer: Rotation inside convex Kakeya sets       Gil Kalai's blog

December 2. James Davies: Odd distances in colourings of the plane

December 9. António Jose Girao: Monotone arrays and a multidimensional Ramsey theorem

December 16. István Lénárt: The Right Triangle as the Simplex in 2D Euclidean Space, Generalized to n Dimensions






Previous semesters:

Spring 2022 Fall 2021 Spring 2021 Fall 2020 Spring 2020 Fall 2019 Spring 2019 Fall 2018 Spring 2018 Fall 2017 Spring 2017 Fall 2016 Spring 2016, Fall 2015