Colloquia: Difference between revisions
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(host: Guo, Seeger) | (host: Guo, Seeger) | ||
''Incidences and line counting: from the discrete to the fractal setting'' | '''Incidences and line counting: from the discrete to the fractal setting''' | ||
How many lines are spanned by a set of planar points?. If the points are collinear, then the answer is clearly "one". If they are not collinear, however, several different answers exist when sets are finite and "how many" is measured by cardinality. I will discuss a bit of the history of this problem and present a recent extension to the continuum setting, obtained in collaboration with T. Orponen and H. Wang. No specialized background will be assumed. | How many lines are spanned by a set of planar points?. If the points are collinear, then the answer is clearly "one". If they are not collinear, however, several different answers exist when sets are finite and "how many" is measured by cardinality. I will discuss a bit of the history of this problem and present a recent extension to the continuum setting, obtained in collaboration with T. Orponen and H. Wang. No specialized background will be assumed. | ||
Revision as of 20:37, 9 September 2022
In 2022-2023, our colloquia will be in-person talks in B239 unless otherwise stated.
September 9 , 2022, Friday at 4pm Jing Tao (University of Oklahoma)
(host: Dymarz, Uyanik, WIMAW)
On surface homeomorphisms
In the 1970s, Thurston generalized the classification of self-maps of the torus to surfaces of higher genus, thus completing the work initiated by Nielsen. This is known as the Nielsen-Thurston Classification Theorem. Over the years, many alternative proofs have been obtained, using different aspects of surface theory. In this talk, I will overview the classical theory and sketch the ideas of a new proof, one that offers new insights into the hyperbolic geometry of surfaces. This is joint work with Camille Horbez.
September 23, 2022, Friday at 4pm Pablo Shmerkin (University of Washington)
(host: Guo, Seeger)
Incidences and line counting: from the discrete to the fractal setting
How many lines are spanned by a set of planar points?. If the points are collinear, then the answer is clearly "one". If they are not collinear, however, several different answers exist when sets are finite and "how many" is measured by cardinality. I will discuss a bit of the history of this problem and present a recent extension to the continuum setting, obtained in collaboration with T. Orponen and H. Wang. No specialized background will be assumed.
September 30, 2022, Friday at 4pm Alejandra Quintos (University of Wisconsin-Madison)
(host: Stovall)
October 7, 2022, Friday at 4pm Daniel Litt (University of Toronto)
(host: Ananth Shankar)
October 14, 2022, Friday at 4pm Andrew Sageman-Furnas (North Carolina State)
(host: Mari-Beffa)
October 21, 2022, Friday at 4pm Ngoc Mai Tran (Texas)
(host: Rodriguez)
November 7-9, 2022, Kristen Lauter (Facebook)
Distinguished lectures
(host: Yang).
November 11, 2022, Friday at 4pm Joel Tropp (Caltech)
This is the Annual LAA lecture. See this for its history.
(host: Qin, Jordan)
November 18, 2022, Friday at 4pm [TBD]
(reserved by HC. contact: Stechmann)
December 2, 2022, Friday at 4pm [TBD]
(reserved by HC. contact: Stechmann)
December 9, 2022, Friday at 4pm [TBD]
(reserved by HC. contact: Stechmann)