All Events

from Tuesday
March 19, 2019 to Friday
May 31, 2019
Show events for:
Instructions for subscribing to Stony Brook Math Department Calendars

 Month     Agenda 

Monday
March 25, 2019

5:30 PM - 6:30 PM
5-127
Student Differential Geometry Seminar
Zhongshan An, Stony Brook University
The Positive Mass Theorem, I.


Tuesday
March 26, 2019

1:00 PM - 2:00 PM
P-131
Grad / Postdoc Professional Development Seminar
Moira Cchas, Stony Brook University
TBA

TBA


Tuesday
March 26, 2019

4:00 PM - 5:00 PM
S-240
Special Lectures
Graduate students, Stony Brook University
Graduate student recitals 1


Wednesday
March 27, 2019

2:30 PM - 3:30 PM
Math Tower P-131
Mini Course / Dynamics Learning Seminar
Jonathan Fraser, University of St Andrews
Dimensions of Kleinian limit sets

The dimension theory of geometrically finite Kleinian groups and their limit sets has a rich and interesting history, with the first calculation of Hausdorff dimension going back to seminal work of Patterson and Sullivan from the 1970s and 80s. There are many different (but related) notions of dimension but, nevertheless, many of the most popular coincide in this setting. In particular, the Hausdorff, box-counting, and packing dimensions of a Kleinian limit set are all given by the Poincare exponent of the group. I will discuss recent work concerning the Assouad dimension, which is not necessarily given by the Poincare exponent in the presence of parabolic points.


Wednesday
March 27, 2019

4:00 PM - 5:30 PM
S-240
Special Lectures
Graduate students, Stony Brook University
Graduate student recitals 2


Thursday
March 28, 2019

2:30 PM
P-131
Analysis Seminar
Sean Li, University of Connecticut
TBA


Thursday
March 28, 2019

1:00 PM
Math Tower 5-127
Symplectic Geometry Seminar
Xiaomeng Xu, MIT
Stokes phenomenon and its applications in mathematical physics

This talk includes a general introduction to the Stokes phenomenon and WKB analysis of differential equations with singularities, and then explores their relations with Yang-Baxter equations and cluster algebras/integrable systems.


Thursday
March 28, 2019

4:00 PM - 5:00 PM
SCGP Auditorium
Colloquium
Simon Donaldson, SCGP
TBA


Monday
April 01, 2019

5:30 PM - 6:30 PM
5-127
Student Differential Geometry Seminar
Owen Mireles Briones, Stony Brook University
The Positive Mass Theorem, II.

TBA


Tuesday
April 02, 2019

5:30 PM - 6:30 PM
Math Tower 5-127
First and Second Year Student Seminar
Moira Chas, Stony Brook University
TBA

TBA


Wednesday
April 03, 2019

2:30 PM - 3:30 PM
Math Tower P-131
Mini Course / Dynamics Learning Seminar
Malik Younsi, University of Hawaii
TBA

TBA


Wednesday
April 03, 2019

4:00 PM - 5:00 PM
TBA
Simons Lectures Series
Alex Eskin, University of Chicago
Polygonal billiards and dynamics on moduli spaces of compact Riemann surfaces

Billiards in polygons can exhibit some bizarre behavior, some of which can be explained by deep connections to several seemingly unrelated branches of mathematics. These include algebraic geometry (and in particular Hodge theory), Teichmuller theory and ergodic theory on homogeneous spaces. I will attempt to give a gentle introduction to the subject. Much of this lecture will be accessible to undergraduates and first-year graduate students.


Wednesday
April 03, 2019

2:30 PM - 3:30 PM
Math Tower P-131
Algebraic geometry seminar
Ignacio Barros, Northeastern University
Two moduli spaces of Calabi-Yau type.

(Note special time due to Simons lectures)

For fixed genus $g$, the transition of $\mathcal{M}_{g,n}$ from uniruled to general type as $n$ increases is rather sudden, making the cases of intermediate Kodaira dimension very rare. In genus $4≤ g ≤ 11$ there are just a few cases for which we still don't know the Kodaira dimension of $\mathcal{M}_{g,n}$, some of them with very rich geometries. I will report on work-in-progress with Scott Mullane, where we study some of this cases hoping to find more instances of intermediate Kodaira dimension.


Thursday
April 04, 2019

2:30 PM
P-131
Analysis Seminar
Michael Damron, Georgia Tech
TBA

TBA


Thursday
April 04, 2019

1:00 PM
Math Tower 5-127
Symplectic Geometry Seminar
Yaron Ostrover, Tel Aviv/IAS
TBA

TBA


Thursday
April 04, 2019

2:15 PM
Math Tower 5-127
Symplectic Geometry Seminar
Barney Bramham, Bochum/IAS
TBA

TBA


Thursday
April 04, 2019

4:00 PM - 5:00 PM
TBA
Simons Lectures Series
Alex Eskin, University of Chicago
The classification of invariant measures

Ratner's celebrated theorems on unipotent flows in homogeneous spaces have partial analogues in moduli space. I will outline the proof (joint with Maryam Mirzakhani and in part Amir Mohammadi) of one such theorem.


Friday
April 05, 2019

4:00 PM - 5:00 PM
TBA
Simons Lectures Series
Alex Eskin, University of Chicago
Orbit closures: theorems and counterexamples

In this lecture I will survey some of what is currently known about the classification of SL(2,R) orbit closures, and complete the proof of some results from Lecture 1. This lecture will have a more algebraic flavor than the others.


Thursday
April 11, 2019

4:00 PM - 5:00 PM
Math Tower P-131
Colloquium
Ernest Croot, Georgia Tech
Long Progressions in Sumsets

An old question in additive number theory is determining the length of the longest progression in a sumset A+B = {a + b : a in A, b in B}, given that A and B are "large" subsets of {1,2,...,n}. I will survey some of the results on this problem, including a discussion of the methods, and also will discuss some open questions and conjectures.


Thursday
April 11, 2019

2:30 PM
P-131
Analysis Seminar
Li-Cheng Tsai, Columbia University
TBA

TBA


Friday
April 12, 2019

2:30 PM - 3:30 PM
Math Tower P-131
Dynamical Systems Seminar
Jing Tao, University of Oklahoma
TBA

TBA


Tuesday
April 16, 2019

4:00 PM - 5:00 PM
Math Tower P-131
Geometry/Topology Seminar
Fedor Manin, Ohio State University
Rational homotopy and topological isoperimetry

Soon after Sullivan introduced his model of rational homotopy theory in the 1970's, Gromov noted that the theory had some metric consequences for maps between compact manifolds or simplicial complexes. I will present a systematic view of this relationship which gives a powerful tool for, among other things, resolving the following type of question, asked by Gromov twenty years later:

Given two $L$-Lipschitz maps $f, g: X → Y$, where $X$ and $Y$ are nice compact metric spaces, what is the optimal Lipschitz constant of a homotopy between them?

I will also try to explain why this question is fundamental to quantitative topology.


Tuesday
April 16, 2019

1:00 PM - 2:00 PM
P-131
Grad / Postdoc Professional Development Seminar
Ilya Elson, Goldman Sachs
TBA

TBA


Wednesday
April 17, 2019

2:30 PM - 3:30 PM
Math Tower P-131
Mini Course / Dynamics Learning Seminar
John Milnor, Stony Brook University
TBA

TBA


Thursday
April 18, 2019

4:00 PM - 5:00 PM
Math Tower P-131
Colloquium
Scott Wolpert, UMD
TBA


Thursday
April 18, 2019

1:00 PM
Math Tower 5-127
Symplectic Geometry Seminar
Gergő Pintér, Eotvos Lorand U.
TBA

TBA


Thursday
April 18, 2019

2:30 PM
P-131
Analysis Seminar
Antonio De Rosa, NYU
Anisotropic counterpart of Allard’s rectifiability theorem and Plateau problem.

We present our extension of Allard's celebrated rectifiability theorem to the setting of varifolds with locally bounded anisotropic first variation.
We identify a necessary and sufficient condition on the integrand for its validity and we discuss the connections of this condition to Almgren's ellipticity. We apply this result to the set-theoretic anisotropic Plateau problem, obtaining solutions to three different formulations: one introduced by Reifenberg, one proposed by Harrison and Pugh and another one studied by David. Moreover, we apply the rectifiability theorem to prove an anisotropic counterpart of Allard's compactness result for integral varifolds.
Some of the presented theorems are joint works with De Lellis, De
Philippis, Ghiraldin and Kolasiński


Thursday
April 18, 2019

2:15 PM
Math Tower 5-127
Symplectic Geometry Seminar
Zhenkun Li, MIT
TBA

TBA


Friday
April 19, 2019

2:30 PM - 3:30 PM
Math Tower P-131
Dynamical Systems Seminar
Saeed Zakeri, CUNY
TBA

TBA


Wednesday
April 24, 2019

2:30 PM - 3:30 PM
Math Tower P-131
Mini Course / Dynamics Learning Seminar
Sabya Mukherjee, Stony Brook University
TBA

TBA


Wednesday
April 24, 2019

4:00 PM - 5:30 PM
Math Tower P-131
Algebraic geometry seminar
Valery Alexeev, University of Georgia
TBA


Thursday
April 25, 2019

4:00 PM - 5:00 PM
Math Tower P-131
Colloquium
John Morgan, SCGP
TBA


Thursday
April 25, 2019

2:30 PM
P-131
Analysis Seminar
Vladimir Bozin, University of Belgrade
Quasiconformal harmonic maps and the bi-Lipschitz condition

We discuss some recent results regarding the Euclidean quasiconformal
harmonic maps. In particular, we show, using the Gehring-Osgood
inequality, that quasiconformal maps between plane domains with
$C^{1,α}$ boundary are bi-Lipschitz. We will also discuss questions
related to the boundary behavior of hqc maps and generalizations to the
higher dimensional case.


Friday
April 26, 2019

2:30 PM - 3:30 PM
Math Tower P-131
Dynamical Systems Seminar
Sergiy Merenkov, CUNY
TBA

TBA


Wednesday
May 01, 2019

4:00 PM - 5:30 PM
Math Tower P-131
Algebraic geometry seminar
Andrew Obus, Baruch College CUNY
TBA

TBA


Thursday
May 02, 2019

2:30 PM
P-131
Analysis Seminar
Hoi Nguyen, Ohio State University
TBA

TBA


Friday
May 03, 2019

2:30 PM - 3:30 PM
Math Tower P-131
Dynamical Systems Seminar
Tom Sharland, University of Rhode Island
TBA

TBA


Thursday
May 09, 2019

4:00 PM - 5:00 PM
Math Tower P-131
Colloquium
Jian Ding, Wharton, UPenn
TBA

TBA


Thursday
May 16, 2019

2:30 PM
P-131
Analysis Seminar
Rami Luisto, University of Jyväskylä
TBA


Show events for:
Instructions for subscribing to Stony Brook Math Department Calendars