Undergraduate Colloquium, Monday, April 28

The next colloquium will be this coming Monday, 4/28, given by Prof. Yakov Sinai. It will be at 5pm in Fine 322. He will be talking about deterministic chaos and here is the abstract:

Deterministic chaos is a property of deterministic dynamics. I shall explain main properties of chaotic dynamics and give some example of chaotic dynamical systems.

Prof. Sinai is known for his work in dynamic systems. As many of you may have heard, he received the Abel Prize, which is often described as the mathematician’s Nobel Prize, not long ago. Check out his wikipedia page if you are interested!http://en.wikipedia.org/wiki/Yakov_Sinai

Undergraduate Colloquium, Wednesday April 23

When: 4:30 pm – 5:30 pm, April 23
Where: Fine 214
Who: Prof. Schapire, who is a professor in the department of Computer Science and specializes in theoretical and applied machine learning.
What:  
Title: How to Play Repeated Games
Abstract:

This talk will describe a simple, general algorithm for learning to play any matrix game against an unknown adversary.  The algorithm can be shown never to perform much worse than the best fixed strategy, even if selected in hindsight.  Moreover, because of the algorithm's moderate resource requirements, it can be used even when working with extremely large game matrices.  Taken together, these properties make the algorithm a good fit for a range of machine-learning applications, some of which will be discussed, for instance, to the problem of learning to imitate the behavior of an "expert" while attempting simultaneously to improve on the expert's performance.

Undergraduate Colloquium, Wednesday April 9th

When: 5:00 pm – 6:00 pm, April 9th (coming Wednesday)
Where: Fine 214
Who: Prof. Adam Levine, who specializes in low-dimensional topology (and he only joined Princeton this academic year!) You can check out some details here:https://www.math.princeton.edu/news/home-page/mathematics-department-welcomes-new-faculty

What:
Title: Knot Concordance
Abstract: Concordance is the study of which knots in three-dimensional space can be realized as the boundaries of embedded disks in four dimensions, a question that was first introduced by Princeton’s Ralph Fox and John Milnor in the 1950s. This question is closely tied to many of the strange features of four-dimensional topology and is the subject of much current research. I’ll provide an overview of this subject and an introduction to some of the modern tools that have led to breakthroughs in our understanding.

Undergraduate Colloquium, Wednesday April 2nd

When: 5:45 pm – 6:45 pm, April 2nd (coming Wednesday)
Where: Fine 314
Who: Prof. Ken Ono, a professor from Emory University who specializes in number theory. You can check him out here: http://en.wikipedia.org/wiki/Ken_Ono
What: Title: Cool theorems proved by undergraduates

Abstract. I will explain some cool theorems in number theory that undergraduates
have proven in the last few years. This will include work on the distribution of
primes, number fields, and extensions if works by Euler-Jacobi-Nekrasov-Okounkov-Serre. Let me explain.

Come Dine with Professor Dunham

Come Meet Professor Dunham, visiting professor and author of Journey Through Genius, this Thursday at 6 in the Butler Private Dining Room!

 

Sign up for “Meet Your Professor Dinner” here: https://wass.princeton.edu/pages/viewcalendar.page.php?makeapp=1&cal_id=1720

William Dunham is visiting Princeton this semester and teaching a Freshman Seminar titled “The Great Theorems of Mathematics.”  He is a historian of mathematics who has spoken at scores of institutions — e.g., Harvard, Penn, Swarthmore — and written multiple books on the subject — e.g., Journey Through Genius(1990), Euler: The Master of Us All (1999), and The Calculus Gallery (2005).   Except for the weather, he’s very much enjoying his term at Princeton, where he’s addressed the Mathematics Colloquium and given the 2014 Pi Day talk to the Math Club.  And he’s thrilled to be part of this “Meet Your Professor” dinner.

Undergraduate Colloquium, Wednesday, 3/26

When: 5:30 pm – 6:30 pm, March 26th
Where: Fine 214
Who: Prof. Klainerman, who specializes in PDE and analysis
What:  Title: Are black holes real
Blackholes are precise mathematical solutions of the Einstein field equations of General Relativity. Some of the most exciting astrophysical objects in the Universe have been identified as corresponding to these mathematical Black Holes, but since no signals can escape their extreme gravitational pull, can one be sure that the right identification has been made?
I will show how this crucial issue of reality of Black Holes can be addressed by nothing more than pen and paper, those perennial tools of the mathematician. I will discuss three fundamental mathematical problems concerning Black Holes, intimately connected to the issue of their reality: rigidity, stability and collapse.